manage to do造句

How do you manage to do such a thing?
你是怎么设法做这样的事?

If we could by any possibility manage to do it, we would for sure.
如果我们有办法做那事, 我们一定会做的.

At night, when you really wish to go to sleep, you rarely manage to do so.
到了夜晚, 你真想睡了, 却很难入睡.