British English 英式英語:
I went shopping at the weekend.
I do ballet at weekends. (something that regularly happens)
American English 美式英語:
I went shopping on the weekend.
I do ballet on weekends. (something that regularly happens)
Don't say 不要說:
I do ballet in weekends.
I do ballet at the weekends.
I do ballet at weekend.
https://www.kidz.com.hk/…/…/prepositions-and-tenses-weekly-2
Topic 25: On the weekend? At the weekend?
British English 英式英語:
I went shopping at the weekend.
I do ballet at weekends. (something that regularly happens)
American English 美式英語:
I went shopping on the weekend.
I do ballet on weekends. (something that regularly happens)
Don't say 不要說:
I do ballet in weekends.
I do ballet at the weekends.
I do ballet at weekend.
https://www.kidz.com.hk/…/…/prepositions-and-tenses-weekly-2