By the time + present (future meaning) – English Grammar Profiler
There are a few times the explanation doesn’t match the examples in the English Grammar Profile, making it a bit confusing whether or not to trust the particular point or to use intuition interpreting it. Here there is no example of continuous…
63 FUTURE present
continuousfor future use C1 ‘BY THE TIME’
Can use the present simple with ‘by the time’ to refer to the future.By the time he gets home, he will just want to go straight to bed.
By the time you arrive the information office at the airport will be closed, as at 11.00 o’clock a full day strike will start.
If we search for any word found 5 spaces to the right of this expression “By the time”, on the NOW corpus, we discover that half the words are past forms, which suggests this expression is possibly more common with past tenses or perfect.
1 GOT 9403 2 ARRIVED 6869 3 REACHED 5165 4 CAME 5026 5 FINISHED 3313 6 LEFT 3038
7 REACH 2808
8 DONE 2656
9 COMES 2452 10 HIT 1878