Future

[olegv]

Please explain to me what the correct choice is (and why) between

By the time Jean gets back, it'll be/it will have been too late

Don't phone after 11.00. I'll be/I'll have been asleep

I supose that the second variant is correct for bot - Am I right?

Thank you

[BobK]

Please explain to me what the correct choice is (and why) between

By the time Jean gets back, it'll be/it will have been too late

Don't phone after 11.00. I'll be/I'll have been asleep

I supose that the second variant is correct for botH - Am I right?

Thank you

By the time Jean gets back it'll be too late

Don't phone after 11.00. I'll be asleep

Note that in the correct context, the past perfect would be the right choice:

A: I'll call when I get back from the airport - probably about 11 o'clock
B: Don't phone then. I go to bed at 10.00 - so if you phone at 11.00 I'll have been asleep for an hour.

b