Explanation:
Explanation:
The verb "caution" is typically followed by "against" when warning someone about something negative or advising them to avoid a mistake.
✅ Correct:
- The teacher cautioned me against my spelling mistakes.
- He cautioned me against driving too fast.
❌ Incorrect:
- The teacher cautioned me for my spelling. (This is incorrect because "caution for" is not a standard usage in English.)