make the pattern of past continous tense

S + was/were + V ing + O

affirmative :S + was/were + V-ing  , ex : I was watching
negative : S + was/were + not + V-ing, ex : You were not watching
Interrogative : Was/were + S + V-ing . ex :was she reading ?
Interrogative negative : was/were + not + V-ing. ex : weren't you reading ?