first conditional

Structure of first conditional

Future simple

First conditional

Example of first conditional

Present simple

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.

expresses a spontaneous decision, an assumption with regard to the future or an action in the future that cannot be influenced.