Well it would help to know how long your stay is.

But it does help to know which car was where.

But how does it help us to know all this?

"Did you see anything at all that would help us to know where they went?"

This can help us to know and understand more about the music we play or listen to.

Would knowledge of the spirit world help her to know what to do?

It helped to know that someone else had problems of the same kind.

It didn't help to know that he could have done nothing else.

And I'm not sure it will help you to know the answer.

"It would certainly help for people to know about the law," she said.