It's good to inform your friends of things.
Willie's birthday was coming up, and he wanted to have a party.
Willie wanted his friends to attend his party.
Willie sent out invitations to his birthday party two weeks before it was scheduled.
Willie waited until the day of the party to send out the invitations.
Most of Willie's friends were able to attend his birthday party.
None of Willie's friends got the invitations in time to attend his party.