1. If you phone me tonight, I might not have time to talk to you.
2. If we start a class blog, will everyone post on it?
3. She may not stay on Twitter if people insult her
4. If you post the photos on Facebook, everyone will be able to see them.
5. Will you send me the stuff by email if you have time?
6. I won't know their address if they don't text me.