Question

Kiedy wstawiamy was, a kiedy were? Podajcie również jakieś wyjątki oraz zasady (regułki).

Answer 1

Was liczba pojedyncza she he it i np. I was in england
Were liczba mnoga we they you np. Were you last week.

Answer 2

Was -> 1 i 3 os l. pojedynczej w past simple 
were -> pozostale osoby w past simple + w 2 conditionalu (If I WERE you, I wouldn't do that.)