Present Simple / Present Continuous (+) I do / He does (-) I don’t do / He doesn’t do (?) Do you do? / Does he do? (+) I am doing / He is doing (-) I’m not doing / He isn’t doing (?) Are you doing? / Is he doing? To talk about situations which happen repeatedly or all the time. I go to the gym every two days. With adverbs of frequency like always, usually, often, sometimes, rarely, hardly ever, never. She hardly ever comes here. After if, when. If you do it, tell me. To talk about actions in progress at the moment of speaking. Hurry up! We’re waiting for you. To talk about future happenings. What are you doing this evening? There are verbs which cannot usually be used in continuous tenses. Some are: like, dislike, love, hate, prefer, want, believe, think (have an opinion), understand, remember, suppose, need, mean, …