Past continuous
We use past continuous to talk about an action that was happening at some point in the past.
Or to describe something that was happening continuously in the past when another action interrupted it
Forms
Affermative form
Subject
Past form of verb "to be"
"ing" form of verb
Negative form
Subject
Past form of verb "to be"
Not
"ing" form of verb
Interrogative form
Past form of verb "to be"
Subject
"ing" form of verb
?
Short answer
Yes-No
Subject
Past form of verb "ing"
Examples
She was sitting on a bench when her boyfriend called her
She wasn't sitting on a bench when her boyfriend called her
Was she sitting on a bench when her boyfriend called her?