1. will + verb
When to use the tense?something will happen in the future; you decide to do something at the moment of speaking; when expressing a wish, promise, prediction
It will rain tomorrow.
I think I will stay home tonight.
I am sure he will call me.
He thinks they will arrive this weekend.
How to use the tense?
regular sentence: will + full verb
question: will + subject + full verb
negation: won't + full verb