A. Dave used to work in a factory. Now he works in a supermarket.
Dave used to work in a factory → he worked in a factory before but he doesn’t work there now
he used to work → he works
past habit → present habit
B. You can say I used to work … / she used to have … / they used to be … etc.
| I/you/we/they | used to | be work have play etc. |
| he/she/it | |
When I was a child, I used to like chocolate.
I used to read a lot of books but I don’t read much these days.
Liz has got short hair now but it used to be very long.
They used to live in the same street as us, so we often used to see them. But we don’t see them very often these days.
Ann used to have a piano but she sold it a few years ago.
The negative is I didn’t use to …
When I was a child I didn’t use to like tomatoes.
The question is did you use to …?
Where did you use to live before you came here?
C. We use used to … only for the past.
You cannot say ‘I use to …’ (present).
I used to play tennis. These days I play golf. (not ‘I use to play golf’)
We usually get up early. (not ‘We use to get up early’)
Examples
Dave used to work in a factory. Now he works in a supermarket.
I used to like chocolate when I was a child.
Liz used to have very long hair.
I didn’t use to like tomatoes.
Where did you use to live?
I used to play tennis. Now I play golf.