The phrase "approve of sb doing" is not grammatically correct. The correct structure is:
✅ "approve of someone doing something"
Example:
- I approve of your decision.
- She approves of the new policy.
Common mistakes:
- "approve of sb doing" → Incorrect. You need "someone" (a person) or "something" (a action or thing).
- "approve of sb doing something" → Correct, but "sb" is a pronoun, so it should be "someone" or "someone's action".
Summary:
- Correct: I approve of someone doing something.
- Incorrect: I approve of sb doing.
Let me know if you'd like a sentence example or a more detailed explanation!