She made her boy study at cram school.
He had his neighbor look after his dog.
I'll let you go home now.
≒ You may go home now.
When it is ready, I'll let you know.
≒ When it is ready, I'll tell you.
When you arrive at Osaka, will you let
≒ When you arrive at Osaka, will you tell me?
I had to cancel the engagement, as my boss
made me work extra hours.
When you deal with the job, you will have
several subordinates assist you.
If you don't want to spoil your children,
don't let them get all they want.