S +used to + V1 + opt

Used to
Used to o’tgan zamonda bajarilib qolib ketgan hozirgi zamonga aloqasi bolmagan ish harakat
For example (masalan)
When I was 17 I would learn in school (qachonki 17 yoshligimda men maktabda oqir edim)
Used to formulasi
S +used to + V1 + OPT
For example
When I was child I was play foodball in street
Negative
S + did not +use to + V1 + OPT
We didn’t use to go to the mountain
Question
Did + S + use to + V1 + OPT

Past simple