Question

qual auxiliar que usamos interrogativas e negativas do passado?​

Answer 1

para o passado simples, se a frase não tiver verbo to be (was/were) que já podem agir como auxiliar para deixar a frase negativa/interrogativa, então usaremos "did". Na negativa ele ganha "not" virando "didn't", enquanto na interrogativa ele vai para trás do sujeito da frase.

i studied a lot last night - i didn't study a lot last night - did i study a lot last night?

she cried - she didn't cry - did she cry?

(se tiver to be)

i was there - i wasn't there - was i there?

they were strong - they weren't strong - were they strong?