1.I used to play soccer with my friends when I was young
used to+V_infinitive: đã từng làm gì
2.Minh used to study very well when he was a boy
used to+V_infinitive: đã từng làm gì
3.He used to smoke
used to+V_infinitive: đã từng làm gì
4.There used to have a tall building here
used to+V_infinitive: đã từng làm gì
5.She used to always go shopping at weekends
used to+V_infinitive: đã từng làm gì
