*Form:
I/he/she/it +was +v-----ing
We/you/they +were+v-----ing
*Use:
1-We use it to say that somebody was in the middle of doing something. EX: I was reading a story at 10 o'clock yesterday.
Ex: We were playing football.
2-It also expresses an action that was happening,then another action interrupted it.
EX: While(As) I was reading , the light turned off.
EX:The light turned off while I was reading
EX:When the light turned off,I was reading.
EX:I was reading when the light turned off
3-We also use it to talk about two actions which were happening at the same time.
EX:While I was playing football , my father was watching me.
*Negative:
We put (not(n't) to was or were.
EX:I was not(wasn't) swimming.
EX:We were not(weren't) studying
*Question:
-Yes or No question:
We invert the subject and the verb to be (was or were)EX:Was he sleeping at 12 o'clock yesterday night?
Yes ,he was.Or No, he wasn't.
EX;Were you going to the club when I saw you yesterday?
Yes, I was.Or No, I wasn't.