英语高手翻译以一下

上面的回答时态错了,误导他人!
应为:
Did she use to sing?
注意 正确的拼写为use to ,而非used to.

否定式;
She didn't use to sing.(BrE ,informal)
or:
She used not to sing.(BrE ,formal)

Does she used to sing?

"Does she used to sing a song?"

"She often sing the past? "