WILL

We use will for:

• On-the-spot decisions: I´m tire. I´ll take a nap.

• Predictions based on what we know:

          You´ll lose weight with this workout.

• Promises, offers, theats, hopes:

           I promise you´ll feel better right away.

NOTE: After time words (while, before, after, until, when, if, etc.) we don´t use will. We use the simple present. I´ll call you when I reach Brazil. (NOT: wen I will reach)BUT When will he call? (question word)