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We use simple present in the if-clause.

You have to replace if for unless for a negative condition.

Use a comma between clauses when the if-clause comes at the beginning.

We use will or going to in the result clause.

Modals can be used in the result clause, expressing possibility, advice or necessity.

Future real Conditional

We use then to emphasize the result.

Both clauses can changes places it will mean the same thing.

The results must be certain.