... continuous:
I/he/she/it was playing/doing/working etc.
we/you/they were playing/doing/working etc.
B. We use the past continuous to say that somebody was in the middle of doing something ... is still raining.
How long has it been raining?
It has been raining for two hours.
We often use the present perfect continuous in this way, especially with how long, for and since The
activity ... clauses
91 Relative clauses (1)-clauses with who/that/which
92 Relative clauses (2)-clauses with or without who/that/which
93 Relative clauses (3)-whose/whom/where
94 Relative clauses...