Question

My mother and I are best friends; составить вопрос и отрицательное предложение(с частицей не);Do my mother and I are best friend?My mother and I don't are best friends так получается?

Answer 1

Глагол to be (are) в present simple
Are my mother and I best friend?
My mother and I aren't best friends

Answer 2

Question: Are my mother and I best friends?

Negative statement: My mother and I are not best friends.