“Didn't use to”, geçmişte alışkanlık olmayan veya geçmişte doğru olmayan durumları anlatır; ardından fiilin yalın hâli gelir. Örnekler:
I didn't use to drink coffee.
She didn't use to live here.
We didn't use to have online classes.
He didn't use to like vegetables.
They didn't use to travel by train.
My brother didn't use to read much.
The town didn't use to be this crowded.
Did you use to play chess?
Son örnek soru biçimidir; olumsuz yapıda “didn't used to” değil, “didn't use to” yazılır.