Looking on the internet deeply has found these results:

But he do not know where they lives is the most popular phrase on the web.

But he do not know where they live 11,380,000,000 results on the web	But he do not know where they lives 11,600,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
But do not know where you're going. It's just some kid, but we know where he lives. But I do not know where. But I do not know where he lives or anything about him. But he do not know look after them. I do not know where the honourable Member has been for the last few minutes but he certainly has not drawn that conclusion from anything I have said here. You do not know where the edge is. He do not know how long I must continue.	But he do not know look after them. It's just some kid, but we know where he lives. But do not know where you're going. But I do not know where he lives or anything about him. You do not know where the edge is. He do not know how long I must continue. But I do not know where. I do not know where the honourable Member has been for the last few minutes but he certainly has not drawn that conclusion from anything I have said here.

But he do not know where they live

11,380,000,000 results on the web

But he do not know where they lives

11,600,000,000 results on the web

More popular!

But do not know where you're going.
It's just some kid, but we know where he lives.
But I do not know where.
But I do not know where he lives or anything about him.
But he do not know look after them.
I do not know where the honourable Member has been for the last few minutes but he certainly has not drawn that conclusion from anything I have said here.
You do not know where the edge is.
He do not know how long I must continue.

But he do not know look after them.
It's just some kid, but we know where he lives.
But do not know where you're going.
But I do not know where he lives or anything about him.
You do not know where the edge is.
He do not know how long I must continue.
But I do not know where.
I do not know where the honourable Member has been for the last few minutes but he certainly has not drawn that conclusion from anything I have said here.