Bonjour
1- If we don't hurry, we will be late.
2- If the weather doesn't improve, we won't have a picnic (will not have)
3- They will go to the party, if they are invited.
4- If I don't go to bed early, I will be tired tomorrow.
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if + présent == > principale au futur (will + Base Verbale)
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bonne journée ☺☺☺