used to do和be used to doing这两个词组问句形式是什么?举个例子是问句形式 不是肯定句

Did sb used to do sth.?某人过去常常做某事吗？
eg: Did you use to be a student ?
Be sb used to doing sth? 某人习惯做某事吗？
eg : Are you used to living here?

used to do 以前常常做某事（现在未必了）
I used to get up at 630 in the morning.
be used to doing是习惯做某事
I'm used to answering stupid questions from Indian customers.
问句：Did you use to do...
Are/Were you used to doing...