English Grammar Tense "used to"

“Used to” expresses the idea that something was an old habit that stopped in the past. It indicates that something was often repeated in the past, but it is not usually done now.
Examples:
Jerry used to study English.
They used to go to Mexico in the summer.
I used to start work at 9 o'clock.
Christine used to eat meat, but now she is a vegetarian.

“Used to” can also be used to talk about past facts or generalizations which are no longer true.
Examples:
I used to live in Paris.
Sarah used to be fat, but now she is thin.
George used to be the best student in class, but now Lena is the best.
Oranges used to cost very little in Florida, but now they are quite expensive.…