Question

What do you do in the evening?
1. I do house chores from time to time.
2. I do household chores from time to time.
3. I do chores from time to time.
4. I do some chores from time to time.
5. I do housework from time to time.
[Are they all grammatical? Which ones are common expressions?]

6. I go to an academy to learn three subjects.
7. I go to a private institute to learn three subjects.
8. I go to a private institution to learn three subjects.
9. I go to a private academy to learn three subjects.
[There seem to be several expressions for "academy" to learn more after school. Are the expressions here all acceptable? Which expressions would you like to recommend? Thank you. I appreciate your help.]

Answer 1

2 - 5 are all correct. 1 is not.

6 - 9 are all well written. You can use any of them for the purpose you gave. Nice!!