I used to play tennis a lot but I don’t play very often now. Diane used to travel a lot. These days she doesn’t go away so often. Do you go to the cinema very often? Not now, but I used to.
We also use used to... for something that was true but is not true any more:
this building is now a furniture shop. It used to be a cinema. I used to think he was unfriendly but now I realise he’s very nice person. I’ve started drinking coffee recentl. I never used to like it before. Janet used to have very long hair when she was a child.
I used to do something is past. There is no present form. You cannot say ‘I use to do’. To talk about the present, use the present simple.