Past Continuous

USES:
- To talk about actions happening at the same time: while.
- To talk about interrupted actions: when.
- To talk about actions that started in the past and had certain duration.

FORM:

- AFFIRMATIVE: Be (in past) + Verb -ing
I was playing basketball.      

- NEGATIVE: Be not (in past) + Verb -ing             I wasn't playing football.
                       

- QUESTION: Be (in past) + Subject + Verb -ing + Complements?          Were you playing tennis?

TO BE is the auxiliary verb.

Links to exercises:

Past continuous 1

Past continuous 2

Past continuous 3

Past continuous 4