- Cấu trúc "how often" ở hiện tại: How often + do/does + S + Vinf?
`1`. How often do you watch TV?
`2`. How often does your father go to work?
`3`. How often does your mother go to the supermarket?
`4`. How often do you listen to music?
`5`. How often does he play football?
- Cấu trúc "how often" ở quá khứ: How often + did + S + Vinf?
`1`. How often did you go to school?
`2`. How often did she do the housework?
`3`. How often did Mary water the flowers?
`4`. How often did your mom help you do the homeowrk?
`5`. How often did you watch horror film
