... 83 89 93 96 10 Prepositions 13 2 11 Conjunctions 13 5 12 Interjections 13 8 13 Sentences 13 9 What is a Sentence? 13 9 Kinds of Sentences 14 0 The Imperative 14 1 The Subject and the Object 14 3 Direct ... Present Progressive Tense Have and Has The Present Perfect Tense 98 99 10 4 10 6 10 8 11 2 11 3 11 5 12 0 Subject-Verb Agreement 12 3 Adverbs 12 7 44 Determiners Verbs and Tenses The Simple Past Tense Regular ... Direct and Indirect Objects 14 4 Positive and Negative Sentences 14 6 Questions 14 7 14 Punctuation Period Comma Exclamation Point Question Mark Apostrophe 15 0 15 0 15 1 15 2 15 2 15 3 What is Grammar? Here’s...