Meaning of ことになる in Japanese

It follows from what you say that he was not there.

My uncle will have been in New York for two years next month.

The boss is hard to get along with. But if I try to talk to him about problems I have at work he might have a little heart. Even a hunter can't kill a bird who flies to him for protection.

That baby will have slept five hours by noon.

You'll be in charge of the girls working in this factory.

It follows from what you say that he was not there.

If what you say is true, it follows that he has an alibi.

Whatever you say will set her off crying.

It will have been raining for a week by tomorrow.

At the risk of sticking my neck out, I think that if we do that, we're making a big, big mistake.