The first conditional is used to discuss things that will probably happen in the future as the result of something else that happens in the present.
The first conditional consists of two clauses, one with If + simple present verb and the second with simple future verb, as in, "If you do something bad, something bad will happen to you."
We can also use the first conditional to make predictions about the future. For example, we can predict that "If my brother crashes the car tonight, my mother will be furious."
First Conditional Grammar Quiz
First Conditional Lessons: