I was there eating pizza.
You were sitting next to me.
I was playing on my computer,yesterday.
You were at the cinema.
I wasn't feeling very good.
You weren't there last night.
I wasn't doing my homework.
I wasn't in the park ,i was playing on my console.
I was there, don't you remember?
Were you playing last week?
Wasn't I at school?
Weren't you in the citty at that moment?