- If + Present Simple --> will + verb
Unless we do our homework, our teacher will be furious.
As long as...
e.g. Provided that the weather is good, the match will take place as usual.
NOTE: No "will", even if they refer to the future!
e.g. If you go Paris make sure you visit the Louvre.
when, while, before, after, as soon as -->
Present Simple, Present Continuous, Present Perfect -->
to refer to the future!!
While you stay in Paris, make sure you visit the Louvre.
When I am sitting on the beach, I love reading books.
As soon as you have arrived home, please call me.