〜てもいいですか

## What it means Use this when you want to check if it's okay to do something, like "May I ~?" or "Is it all right if I ~?" It's a polite, easy way to ask for permission before you act.

## When to use it Take the **te-form** of a verb and add もいいですか. If the answer is yes, people usually say はい、いいです(よ) or はい、どうぞ. If the answer is no, Japanese speakers rarely say no directly — they often soften it with something like すみません、ちょっと...

## Don't confuse it with This is the opposite of てはいけません, which flatly refuses permission ("you must not ~"). てもいいですか asks, てはいけません forbids. A very common beginner slip is dropping the final か — without it, てもいいです turns into a statement ("it's fine if I...") instead of a question.