We use first conditional when we talk about possibilities in the present or in the future.
A first conditional sentence consists of two clauses, if clause and main clause
if + present simple + future simple (will)
If we use"if" clause first, we usually use a comma after if clause.
If you study , you will pass the exam.
If we use "if" clause second, there is no need for a comma.
You will pass the exam if you study.
You won’t lose if you play well.