get to know somebody

I had got to know the girl in question pretty well.

But I've got to know how much head start he has.

If the police have got to know, you may as well tell me first.

To understand what I mean you've got to know one or two things about me.

You've got to know your time is coming and will come.

I've got to know him a lot over the last three or four years.

But you've got to know about him to understand what happened next.

We had got to know each other pretty well by then.

You've got to know where he is all the time.

I've got to know whether you saw him or not.