How do we make the Past Continuous Tense?
The structure of the past continuous tense is:
|subject||+||auxiliary be||+||main verb|
|conjugated in Past Simple|
|was, were||present participle|
The auxiliary verb (be) is conjugated in the Past Simple: was, were
The main verb is invariable in present participle form: -ing
For negative sentences we insert not between the auxiliary verb and the main verb.
For question sentences, we exchange the subject and the auxiliary verb.
Look at these example sentences with the Past Continuous tense:
|subject||auxiliary verb||main verb|
|-||He, she, it||was||not||helping||Mary.|