Past continuous: affirmative, negative and interrogative

INTERROGATIVE

NEGATIVE

AFFIRMATIVE

PAST CONTINUOS

HOW IS IT USED?

Express actions or states that were occurring in the past when another action or state interrupts or reinforces it.

STRUCTURE

Subject + auxiliary verb (to be) + gerund verb (ing) + complement

EXAMPLE

You were going to the swimming pool when I saw you.

They were dancing salsa when their baby woke up.

Subject + auxiliary verb (to be) + not + gerund verb (ing) + complement

EXAMPLE

We were not snoring when you were working.

They were not sleeping together that year.

Auxiliary verb (to be) + subject + gerund verb (ing) + complement +?

EXAMPLE

What was he doing this time yesterday?(

Were you having a good conversation when I interrupted you?