Question

quando usar was wasn't were werem't

Answer 1

was se usa nas pessoas he,she,it
wasnt se usa quando queres usar numa frase negativa

were you, they,we
werent para usar em frases negativas
espero ter ajudado ,bjs

Answer 2

Was- I, She, He, It,
Was not\wasn't - I, She, He, It, porém em frases negativas
Were- You, we, they
Weren't- You, we, they, porém usado em frases negativas

Os verbos que vêm depois do verbo to be, tanto no presente, quanto no passado, serão acrescentados o "ING".
Ex: I was studying when you arrived.
They weren't playing video game.