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Tổng hợp các thì tiếng anh kèm bài tập áp dụng có đáp án
TỔNG HỢP CÁC THÌ TRONG TIẾNG ANH CÔNG THỨC, CÁCH SỬ DỤNG, DẤU HIỆU NHẬN BIẾT THÌ HIỆN TẠI ĐƠN SIMPLE PRESENT VỚI ĐỘNG TỪ THƯỜNG Khẳng định: S + Vs/es + O Phủ định: S+ DO/DOES + NOT + V +O Nghi vấn: DO/DOES + S + V+ O ? VỚI ĐỘNG TỪ TOBE Khẳng định: S+ AM/IS/ARE + O Phủ định: S + AM/IS/ARE + NOT + O Nghi vấn: AM/IS/ARE + S + O Từ nhận biết: always, every, usually, often, generally, frequently Cách dùng: Thì đơn diễn tả chân lý, thật hiển nhiên Ví dụ: The sun ries in the East Tom comes from England Thì đơn diễn tả thói quen, hành động xảy thường xuyên Ví dụ: Mary often goes to school by bicycle I get up early every morning Lưu ý: ta thêm "es" sau động từ tận là: O, S, X, CH, SH Thì đơn diễn tả lực người Ví dụ: He plays badminton very well Thì đơn diễn tả kế hoạch xếp trước tương lai thời khoá biểu, đặc biệt dùng với động từ di chuyển THÌ HIỆN TẠI TIẾP DIỄN - PRESENT CONTINUOUS Công thức Khẳng định: S + be (am/ is/ are) + V_ing + O Phủ định: S+ BE + NOT + V_ing + O Nghi vấn: BE + S+ V_ing + O Từ nhận biết: Now, right now, at present, at the moment Cách dùng tiếp diễn Thì tiếp diễn tả hành động diễn kéo dài dài thời gian Ex: The children are playing football now Thì thường sau câu đề nghị, mệnh lệnh Ex: Look! the child is crying Be quiet! The baby is sleeping in the next room Thì diễn tả hành động xảy lặp lặp lại dùng với phó từ ALWAYS: Ex: He is always borrowing our books and then he doesn't remember Thì dùng để diễn tả hành động xảy ( tương lai gần) Ex: He is coming tomrow Lưu ý: Không dùng với động từ nhận thức chi giác như: to be, see, hear, understand, know, like, want, glance, feel, think, smell, love hate, realize, seem, remmber, forget, Ex: I am tired now She wants to go for a walk at the moment Do you understand your lesson? THÌ HIỆN TẠI HOÀN THÀNH - PRESENT PERFECT Khẳng định: S + have/ has + Past participle (V3) + O Phủ định: S + have/ has + NOT+ Past participle + O Nghi vấn: have/ has +S+ Past participle + O Từ nhận biết: already, not yet, just, ever, never, since, for, recenthy, before Cách dùng: Thì hoàn thành diễn tả hành động xảy chưa xảy thời gian không xác định khứ Thì hoàn thành diễn tả lập lập lại hành động khứ Thì hoàn thành dùng với since for Since + thời gian bắt đầu (1995, I was young, this morning etc.) Khi người nói dùng since, người nghe phải tính thời gian For + khoảng thời gian (từ lúc đầu tới bây giờ) Khi người nói dùng for, người nói phải tính thời gian THÌ HIỆN TẠI HOÀN THÀNH TIẾP DIỄN - PRESENT PERFECT CONTINUOUS Khẳng định: S has/have + been + V_ing + O Phủ định: S+ Hasn’t/ Haven’t+ been+ V-ing + O Nghi vấn: Has/HAve+ S+ been+ V-ing + O? Từ nhận biết: all day, all week, since, for, for a long time, almost every day this week, recently, lately, in the past week, in recent years, up until now, and so far Cách dùng: Thì hoàn thành tiếp diễn nhấn mạnh khoảng thời gian hành động xảy khứ tiếp tục tới (có thể tới tương lai) THÌ QUÁ KHỨ ĐƠN - SIMPLE PAST VỚI ĐỘNG TỪ THƯỜNG Khẳng định: S + V_ed + O Phủ định: S + DID+ NOT + V + O Nghi vấn: DID + S+ V+ O ? VỚI TOBE Khẳng định: S + WAS/WERE + O Phủ định: S+ WAS/ WERE + NOT + O Nghi vấn: WAS/WERE + S+ O ? Từ nhận biết: yesterday, yesterday morning, last week, las month, last year, last night Cách dùng: Thì khứ đơn diễn tả hành động xảy kết thúc khứ với thời gian xác định CHỦ TỪ + ÐỘNG TỪ QUÁ KHỨ When + khứ đơn (simple past) When + hành động thứ THÌ QUÁ KHỨ TIẾP DIỄN - PAST CONTINUOUS Khẳng định: S + was/were + V_ing + O Phủ định: S + wasn’t/weren’t+ V-ing + O Nghi vấn: Was/Were + S+ V-ing + O? Từ nhận biết: While, at that very moment, at 10:00 last night, and this morning (afternoon) Cách dùng: Dùng để diễn tả hành động xảy lúc Nhưng hành động thứ xảy sớm tiếp tục xảy hành động thứ hai xảy CHỦ TỪ + WERE/WAS + ÐỘNG TÙ THÊM -ING While + khứ tiếp diễn (past progressive) THÌ QUÁ KHỨ HOÀN THÀNH - PAST PERFECT Khẳng định: S + had + Past Participle (V3) + O Phủ định: S+ hadn’t+ Past Participle + O Nghi vấn: Had+S+ Past Participle + O? Từ nhận biết: after, before, as soon as, by the time, when, already, just, since, for Cách dùng: Thì khứ hoàn thành diễn tả hành động xảy kết thúc khứ trước hành động khác xảy kết thúc khứ THÌ QUÁ KHỨ HOÀN THÀNH TIẾP DIỄN - PAST PERFECT CONTINUOUS Khẳng định: S+ had + been + V_ing + O Phủ định: S+ hadn’t+ been+ V-ing + O Nghi vấn: Had+S+been+V-ing + O? Từ nhận biết: until then, by the time, prior to that time, before, after Cách dùng: Thì khứ hoàn thành tiếp diễn nhấn mạnh khoảng thời gian hành động xảy khứ kết thúc trước hành động khác xảy kết thúc khứ THÌ TƯƠNG LAI - SIMPLE FUTURE Khẳng định: S + shall/will + V(infinitive) + O Phủ định: S + shall/will + NOT+ V(infinitive) + O Nghi vấn: shall/will + S + V(infinitive) + O? Cách dùng: Khi đoán (predict, guess), dùng will be going to Khi dự định trước, dùng be going to không dùng will CHỦ TỪ + AM (IS/ARE) GOING TO + ÐỘNG TỪ (ở tại: simple form) Khi diễn tả tình nguyện sẵn sàng, dùng will không dùng be going to CHỦ TỪ + WILL + ÐỘNG TỪ (ở tại: simple form) 10 THÌ TƯƠNG LAI TIẾP DIỄN - FUTURE CONTINUOUS Khẳng định: S + shall/will + be + V_ing+ O Phủ định: S + shall/will + NOT+ be + V_ing+ O Nghi vấn: shall/will +S+ be + V_ing+ O Từ nhận biết: in the future, next year, next week, next time, and soon Cách dùng: Thì tương lai tiếp diễn diễn tả hành động xảy thời điểm tương lai CHỦ TỪ + WILL + BE + ÐỘNG TỪ THÊM -ING CHỦ TỪ + BE GOING TO + BE + ÐỘNG TỪ THÊM -ING 11 THÌ TƯƠNG LAI HOÀN THÀNH - FUTURE PERFECT Khẳng định: S + shall/will + have + Past Participle Phủ định: S + shall/will + NOT+ be + V_ing+ O Nghi vấn: shall/will + NOT+ be + V_ing+ O? Từ nhận biết: by the time and prior to the time (có nghĩa before) Cách dùng: Thì tương lai hoàn thành diễn tả hành động tương lai kết thúc trước hành động khác tương lai CHỦ TỪ + WILL + HAVE + QUÁ KHỨ PHÂN TỪ (PAST PARTICIPLE) 12 THÌ TƯƠNG LAI HOÀN THÀNH TIẾP DIỄN - FUTURE PERFECT CONTINUOUS Khẳng định: S + shall/will + have been + V_ing + O Phủ định: S + shall/will + NOT+ have been + V_ing + O Nghi vấn: shall/will + S+ have been + V_ing + O? Cách dùng: Thì tương lai hoàn thành tiếp diễn nhấn mạnh khoảng thời gian hành động xảy tương lai kết thúc trước hành động khác tương lai Khi dự định trước, dùng be going to không dùng will CHỦ TỪ + AM (IS/ARE) GOING TO + ÐỘNG TỪ (ở tại: simple form) Khi diễn tả tình nguyện sẵn sàng, dùng will không dùng be going to CHỦ TỪ + WILL + ÐỘNG TỪ (ở tại: simple form) Bài tập tổng hợp tiếng Anh hay có đáp án (Exercises on tenses) EXERCISE 1: Use the correct form of verbs in brackets In all the world, there (be) only 14 mountains that (reach) above 8,000 meters He sometimes (come) to see his parents When I (come) , she (leave) for Dalat ten minutes ago My grandfather never (fly) in an airplane, and he has no intention of ever doing so We just (decide) that we (undertake) the job He told me that he (take) a trip to California the following week I knew that this road (be) too narrow Right now I (attend) class Yesterday at this time I (attend) class Tomorrow I’m going to leave for home When I (arrive) at the airport, Mary (wait) for me 10 Margaret was born in 1950 By last year, she (live) on this earth for 55 years 11 The traffic was very heavy By the time I (get) to Mary’s party, everyone already (arrive) 12 I will graduate in June I (see) you in July By the time I (see) you , I (graduate) 13 I (visit) my uncle’s home regularly when I (be) a child 14 That book (be) on the table for weeks You (not read) it yet ? 15 David (wash) his hands He just (repair) the TV set 16 You (be) here before? Yes, I (spend) my holidays here last year 17 We never (meet) him We don’t know what he (look) like 18 The car (be) ready for him by the time he (come) tomorrow 19 On arriving at home I (find) that she just (leave) a few minutes before 20 When we (arrive) in London tonight, it probably (rain) 21 It (rain) hard We can’t anything until it (stop) 22 Last night we (watch) TV when the power (fail) 23 That evening we (stay) up to talk about the town where he (live) for some years 24 I (sit) down for a rest while the shoes (repair) 25 Half way to the office Paul (turn) round and (go) back home because he (forget) to turn the gas off 26 London (change) a lot since we first (come) to live here 27 While we (talk) on the phone the children (start) fighting and (break) a window 28 He used to talk to us for hours about all the interesting things he (do) in his life 29 You know she (stand) looking at that picture for the last twenty minutes 30 I (spend) a lot of time travelling since I (get) this new job 31 When we (be) at school we all (study) Latin 32 When I (meet) him , he (work) as a waiter for a year 33 After he (finish) breakfast he (sit) down to write some letters 34 She (have) a hard life, but she’s always smiling 35 I think Jim (be) out of town EXERCISE 2: Choose the best answer among A, B, C, or D When I last saw him, he _ in London A has lived B is living C was living D has been living We _ Dorothy since last Saturday A don’t see B haven’t seen C didn’t see D hadn’t seen The train half an hour ago A has been leaving B left C has left D had left B paint C will have painted Jack the door A has just painted D painting My sister for you since yesterday A is looking B was looking C has been looking D looked I Texas State University now A am attending B attend C was attending D attended He has been selling motorbikes A ten years ago B since ten years C for ten years ago D for ten years Christopher Columbus _ American more than 500 years ago A discovered B has discovered C had discovered D had been discovering He fell down when he towards the church A run B runs C was running D had run 10 We _ there when our father died A still lived B lived still C was still lived D was still living 11 They table tennis when their father comes back home A will play B will be playing C play D would play 12 By Christmas, I _ for Mr Smith for six years A will have been working B will work C have been working D will be working 13 I _ in the room right now A am being B was being C have been being D am 14 I to New York three times this year A have been B was C were D had been 15 I’ll come and see you before I _ for the States A leave B will leave C have left D shall leave 16 The little girl asked what _ to her friend A has happened B happened C had happened D would have been happened 17 John a book when I saw him A is reading B read C was reading D reading 18 He said he _ return later A will B would C can D would be 19 Jack the door A has just opened B open C have opened D opening 20 I have been waiting for you A since early morning B since a.m C for two hours D All are correct 21 Almost everyone _ for home by the time we arrived A leave B left C leaves D had left 22 By the age of 25, he two famous novels A wrote B writes C has written D had written 23 When her husband was in the army, Mary to him twice a week A was reading B wrote C was written D had written 24 I couldn’t cut the grass because the lawn mower a few days previously A broke down B has been broken C had broken down D breaks down 25 I have never played badminton before This is the first time I _ to play A try B tried C have tried D am trying 26 Since _, I have heard nothing from him A he had left B he left C he has left D he was left 27 After I _ lunch, I looked for my bag A had B had had C have has D have had 28 By the end of next year, George _ English for two years A will have learned B will learn C has learned D would learn 29 The man got out of the car, round to the back and opened the book A walking B walked C walks D walk 30 Henry _ into the restaurant when the writer was having dinner A was going B went C has gone D did go 31 He will take the dog out for a walk as soon as he dinner A finish B finishes C will finish D finishing 32 I will be glad if he _ with us A had gone B did go C went D goes 33 Ask her to come and see me when she _ her work C has written D had written 33 While her husband was in the army, Janet to him twice a week A was writing B wrote C was written D had written 34 I couldn’t cut the grass because the machine a few days previously A broke down B has been broken C had broken down D breaks down 35 According to this newspaper, John is said …a new record for the long jump A to have established B establishing C to establish D established 36 I have never played badminton before.This is the first time I to play A try B tried C have tried D am trying 37 Since ,I have heard nothing from him A he had left B he left C he has left D he was left 38 I like looking at these pictures, but I enough by lunch time A should have B will have C will have had D have 39 I don’t understand this sentence.What ? A does mean this word B have this word mean C means this word D does this word mean 40 John tennis once or twice a week A usually play B is usually playing C usually plays D have usually played 41 It was noisy next door Our neighbors a party A had B were having C had had D have had 42 It dark.Shall I turn on the light? A is getting B get C got D has got 43 I for Christine Do you know where she is? A look B looked C am looking D looks 44 At o’clock yesterday evening, I …my clothes A am ironing B have ironed C ironed D was ironing 45 “Are you ready ,Ann?” “Yes,I …” A am coming B come C came D have came 46 Why .at me like that?What’s the matter? A you look B have you looked C did you look D are you looking 47 I along the street when I suddenly heard footsteps behind me A was walking B am walking C walk D walked 48 She .German for two years A has learnt B is learning C learn D learns 49 I usually away at weekends A have gone B goes C am going D go 50 The earth … round the sun A go B has gone C went D goes 51 I come from Canada.Where .you .from? A do/come B did/ come C are coming D have/come 52 When I last …Jane,she .to find a job A see/was trying B saw/was trying C have seen/tried D saw/tried 53 I… at o’clock every morning A was getting up B got up C is getting up D get up 54 … you go to the dentist? A how often are B how often C how often does D how are 55 Ann tea very often A doesn’t drink B don’t drink C didn’t drink D hasn’t drunken 56 The sun… in the East A is rising B rose C has risen D rises 57 It is a nice day.I we go out for a walk A suggested B suggest C is suggesting D are suggesting 58 Tim was tired.He hard all day A has been studying B studies C studied D had been studying 59 Bad driving often many accidents A caused B had caused C causes D has cause 60 The Olympic Games every four years A take place B takes place C took place D is taking place 61 What time… the banks close in Britain? A B did C does D can 62 Look!That man… to open the door of your car A try B tried C is trying D has tried 63 When I was young,I to be a singer A want B was wanting 64 They me about it last week A was telling B told C had told D would tell 65 I here at the end of the month C wanted D had wanted A will leave B would leave C would have left D is leaving 66 My grandfather …many years ago A had died B has died C died D was dying 67 I .my son the money for that last week A gave B given C have given D was given 68 Yesterday I passed by Peter’s house, but the front door was closed.He … out A went B must have gone C has gone D had had 69 I the dishwasher on when heard the shot A A am turning B was turning C was turning D turned 70 There was a time when watching TV really… family entertainment A were B was C had been D is 71 Last year, they 22 million TV sets A were selling B had sold C has sold D sold 72 At last the bus came.We for half an hour A waited B was waiting C have waited D had been waiting 73 Daniel the bus.It doesn’t run on Sundays A did not catch B have not caught C had not caught D couldn’t have caught 74 I’m feeling sick.I so much chocolate last night A needn’t to eat B did not eat C musn’t eat D shouldn’t have eaten 75 I’m going on holiday on Saturday.This time next week I on a beach in the sea A will lie B am lying C will be lying D should be lying 76 Ted and Amy for 24 years A have been married B married C were married D has been married 77 Tomorrow I… my grandparents A am going to visit B will have visited C have visited D visit 78 When the first child was born, they married for three years A have been married B had been married C will been married D will have been married 79 I think the weather… nice later A will be B be C had D has been 80 She .very angry when she knows this A shall be B has been C will have been D will be Đáp án tập tiếng Anh A B A C D 6.B A D A 10 A 11 C 12 C 13 B 14 A 15 D 16 C 17 A 18 B 19 B 20 C 21 B 22 A 23 B 24 B 25 B 26 B 27 B 28 B 29 B 30 B 31 D 32 D 33 B 34 C 35 A 36 C 37 B 38 C 39 D 40 C 41 B 42 A 43 C 44 D 45 A 46 D 47 A 48 A 49 D 50 D 51 A 52 B 53 D 54 B 55 A 56 D 57 B 58 D 59 C 60 B 61 A 62 C 63 C 64 B 65 A 66 C 67 A 68 B 69 C 70 B 71 D 72 D 73 D 74 D 75 C 76 A 77 A 78 B 79 A 80 D Bài tập kết hợp đơn tiếp diễn Where _you (live) ? I (live) in Hai Duong town What _he (do) now? He (water) _flowers in the garden What _she (do) _? She (be) a teacher Where _you (be) from? At the moment, my sisters (play) volleyball and my brother (play) soccer It is 9.00; my family (watch) _TV In the summer, I usually (go) to the park with my friends, and in the spring, we (have) _Tet Holiday; I (be) happy because I always (visit) my granparents your father (go) _to work by bus? How _your sister (go) _to school? 10 What time _they (get up) _? 11 What they (do) in the winter? 12 Today, we (have) English class 13 Her favourite subject (be) English 14 Now, my brother (like) _eating bananas 15 Look! Aman (call) _you 16 Keep silent ! I (listen ) to the radio 17 you (play) _badminton now? 18 Everyday, my father (get up) _ at 5.00 a.m, but today, he (get up) at 6.00 am 19 Every morning , I (watch) _tv at 10.00, but today I (Listen ) to music at 10.00 20 Everyday , I (go) to school by bike but today I go to school by motorbike 21 Every morning, my father (have) a cup of coffe but today he (drink) milk 22 At the moment, I(read) _a book and my brother (watch) _ TV 23 Hoa (live) in Hanoi, and Ha (live) in HCM City 24 Hung and his friend (play) _badminton 25 They usually (get up) _at 6.oo in the morning 26 Ha never (go) fishing in the winter but she always (do) _ it in the summer 27 My teacher (tell) Hoa about Math 28 There (be) animals in the circus 29 _he (watch) TV at 7.00 every morning? 30 What _she (do ) _at 7.00 am? 31 How old _she (be)? 32 How _she (be)? 33 My children (Go) to school by bike 34 We (go) _to supermarket to buy some food 35 Mr Hien (go) on business to Hanoi every month 36 Ha (like) coffee very much, but I (not like) it 37 She (like ) Tea, but she (not like) coffee 38 I (love) _ cats, but I (not love) dogs 39 Everyday ,I (go) to school on foot, but today I (go) to school by bike 40 Who you _(wait) for Nam? - No, I _(wait) for Mr Hai 41 My sister (get) dressed and (brush) _her teeth herself at 6.30 everyday 42 Mrs Smith (not live) in downtown She (rent) _in an appartment in the suburb 43 How _your children (go) _to school everyday? 44 It’s o’clock in the morning Lien (be) in her room She (listen) _to music 45 We _(play) soccer in the yard now 46 My father (go) _ to work by bike Sometimes he(walk) 47 _You (live) near a market? _ It (be) noisy? 48 Now I (do) _the cooking while Hoa (listen) _to music 49 At the moment, Nam and his friends (go) _shopping at the mall 50 In the autumn, I rarely (go) sailing and (go) to school 51 I (write) _ a letter to my friend now 52 At 12 a.m every day, I (have) lunch and (go) to bed 53 On Monday, I (have) math and Art 54 On Friday, I (have) English 55 At the moment, I (eat) an orange, and My sisters (Play) _ Tennis 56 _her bag (be)? - No, they(not be) 57 What time _your children (go) to school? 58 He (live) in HCM City 59 What time _your brother usually (get) _up? 60 My house (be) _in the city and it (be) _small 61 Every morning , we (have) breakfast at 7.00 am 62 This (be) a book and there (be) _pens 63 Mr Quang (live) in the countryside He (have) a big garden 64 John (not have) Literature lesson on Friday 65 What time _you (start) _your class? 66 _you (be) in class 12A3? 67 Mrs Ha (learn) in Hanoi, but she (not live) there 68 My brother (not live ) in London; he (live ) _ in Manchester 69 Now Mr Long (design ) his dream house 70 He (like) _APPLES, but he (not like ) _bananas 71 she (like) apples? 72 Usually, I (have) _lunch at 12.00 - you (have) _lunch at 11.00? 73 He can (swim) _but I can’t(swim) _ 74 At the moment, my sister (read) _ a comic book 75 I (like ) ice-cream 76 What _Mr Ha (live) _? 77 Monkeys can (climb) _ the tree 78 Hang (go) to the bookshop now because she (want) _to buy some books 79 We (go) to market and (buy) _some fruits 80 Now, Lan (study) English and Lien (listen) to music 81 Everynight , she (have) dinner at 7.00 p.m 82 Every year, I usually (go) Vietnam 83 In the summer, I sometimes (go) swimming 84 Every everning, my mother (like) _ watching television 85 Lan (have) _breakfast and (go) _to school at 6.30 a.m 86 We (not read) _after lunch 87 Tom (be) _my friend He (play) sports everyday 88 your students (play) soccer every afternoon? 89 He (go) _to bed at 11.30 p.m 90 They (go) _home and (have) _lunch 91 _he (play) sports? 92 He (teach) _English in a big school in town 93 Everyday she (go) to work by bike 94 We usually (read) _books, (listen) _to music or (watch) _TV 95 Sometimes, I (play) badminton 96 Ann (like) her job very much 97 _your mother (walk) _to the market? 98 Look! They (run) _together BÀI TẬP THÌ HIỆN TẠI HOÀN THÀNH TIẾP DIỄN I Chọn đáp án đúng: Why are your hands so dirty? - I …… my bike A Repaired C Have been repairing B Have repaired D Has been reparing We …… around Scotland for days A Traveled C Have been travelling B Have traveled D Has been travelling Steve has been driving for hours A But he's having a barbeque at the moment B In hours he's going to reach Vermont I have been trying to contact him _ A but to no avail B fortunately he picked up the phone The ballon has been soaring 100 meters above us for hours A Why can't they land at last? B But they have landed minutes ago Who has been eating my chocolate bar? A Soon I will have none left B There are none left 10 She has been tidying up her office, hasn't she? A Yes, she has tidied it up already B Yes, she has C No, she isn't 14 She has been tidying up her office, hasn't she? A Yes, she has tidied it up already B Yes, she has C No, she isn't II Chia động từ ngoặc: 1) I _( try ) to learn English for years, but I _( not succeed ) yet 2) Mary ( rest) in the garden all day because she ( be) ill 3) She _( work ) so hard this week that she _( not have ) time to go to the movies 4) That book ( lie ) on the table for weeks You _( not read ) it yet ? 5) He _( not be ) here since Christmas I wonder where he (live) since then 6) Jack (go) to Paris for a holiday He never ( be) there 7)You _( sleep ) so far ? I _( ring ) the bell for the last twenty minutes 8) He ( write ) a novel for two years, but he ( not finish ) it yet 9) Mary _( lose ) her hat and she _( look ) for it until now 10) I ( see ) that film several times because I like it ... A A C A 10 A Bài tập trắc nghiệm Tiếng Anh có áp án Trong tiếng anh có khoảng 12 thi dễ nhầm lần bạn không nắm rõ kiến thức, thi trắc nghiệm dạng tập loại thường gặp Để làm xác nhanh chóng bạn... dùng will không dùng be going to CHỦ TỪ + WILL + ÐỘNG TỪ (ở tại: simple form) Bài tập tổng hợp tiếng Anh hay có áp án (Exercises on tenses) EXERCISE 1: Use the correct form of verbs in brackets... since, for, recenthy, before Cách dùng: Thì hoàn thành diễn tả hành động xảy chưa xảy thời gian không xác định khứ Thì hoàn thành diễn tả lập lập lại hành động khứ Thì hoàn thành dùng với since