We are talking about the future. We are thinking about a particular condition or situation in the future, and the result of this condition. There is a real possibility that this condition will happen.
FIRST CONDITIONAL
If it rains,I will stay at home.https://www.englishclub.com/grammar/verbs-conditional_2.htm
Diapositiva 4
REMEMBER THE FORMULA:condition result If + Present Simple will + base verb