Time Clauses: When/After

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• A future time clause with when or after shows two actions/events.  The second action/event is a result of the first action/event. 

  
  

  Time clauses for future events:

  -Time clause = present simple

  -Main clause = future or imperative

  I will call you when I get home.* (Future + Present Simple)

  When you get home, call me. (Present Simple, + Imperative)

• • Peter will come home when the blizzard stops.	When it stops raining, go outside.
    The rescue team will search for survivors after the storm passes.	After a natural disaster occurs, remain calm.

  • *Be careful! Do NOT use future for time clauses (I will call you when I will get home.)

 Source : Alison