Read the telephone conversation and choose the correct options

Tim: Hi, Mike. How about going to the club tonight?

Mike: I'd love to but I'm not sure if I can manage it. I'm out of the city right now. I'll have driven for 5 hours by the time I get home. So, I might be too tired to join you.

Tim: Hmmm … Here's the deal. I'll have waited till 8 p.m. to call you and find out your final decision. Will you have returned home by then?

Mike: Emmm … No, I probably won't have returned home by 9. Call me at 9:30 and I'll let you know if I come.

Tim: No prob. Be in touch.

Mike: OK. Bye.

Future Perfect is used for actions which

• will definitely happen in the future as a result of a routine or arrangement.
• will be in progress at a stated future time.
• describe hopes, fears, offers, promises, warnings etc.
• will be finished before a stated future time.
• describe predictions based on what we see or know.

Future Perfect is formed with the help ofwill + have +

• verb + -ing.
• present participle.
• past participle.
• bare infinitive.
• full infinitive.

Time words for Future Perfect are

• after;
• before;
• till/until;
• as soon as;
• by;
• while;
• by then/the time;
• if;
• never.