I just received a note from school on which I found an interesting grammatical structure “if school _will_ close early, the announcement _will_ be made…”. We were always taught that there cannot be future tense after if. I know about three exceptions:
1) if if is used in the sense of “whether” (“Doctor, can you tell me if my hamster will have babies?”)
2) if will is used to express willingness (“I think I will warm some water for tea if you will excuse me.”)
3) if the part in if happens time-wise after the part in then (easier to show with an example: “If aspirin will ease my headache, I will take a couple tonight instead of this horrible medicine.”)
P.S. Thank you, I missed something, there really is the third case here. First comes the announcement, then the school closes. I somehow thought it was the other way around, didn’t grasp the meaning) Generally, a good illustration of the third point
Hi, I'm Rauf Aliev. 