Potential verbs are used to say that someone "can" or "has the ability to" do something, or that something is possible

Constructing potential verbs:

ru-verbs:  Drop the final -ru and add -rareru  Ex: 見る -> 見られる

u-verbs:  Drop the final -u and add -eru  Ex:  行く -> 行ける

Irregular verbs:  くる -> こられる, する -> できる

Alternative potential forms:  見る -> 見れる　(drop the ra, only for -ru verbs)