Relier Pairs first conditionalVersion en ligne First conditional par Andrey Parada Gómez 1 Example of first conditional 2 Structure of first conditional 3 Future simple 4 Present simple 5 First conditional For repeated or regular actions in the present time period. If it rains, I won't go to the park. If + present simple + future simple expresses a spontaneous decision, an assumption with regard to the future or an action in the future that cannot be influenced. It's used to talk about things which might happen in the future. Of course, we can't know what will happen in the future, but this describes possible things, which could easily come true.