Relier Pairs first conditionalVersion en ligne First conditional par Andrey Parada Gómez 1 First conditional 2 Future simple 3 Structure of first conditional 4 Present simple 5 Example of first conditional 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. For repeated or regular actions in the present time period. If + present simple + future simple If it rains, I won't go to the park.