Question

Assinale a frase que contém a estrutura correta do "used to" na forma INTERROGATIVA. *
Did they use to play chess?
Do they play chess?
Did they used to play chess?​

Answer 1

Primeira alternativa:did they use to play chess esta correta pois ao colocar auxiliar did o use perde o -ED e logo fica no infinitivo

Answer 2

did they used to play chess?​

                hope this help✌️