Asking Permission in Japanese: Te Mo Ii Desu Ka in Everyday Situations

To ask permission for your own action, use the verb’s te-form plus もいいですか. This is different from asking the other person to do something for you.

The basic grammar is useful, but the other person’s role and the setting still matter. Ask someone who can answer the question, and listen for conditions or a refusal before acting.

Identify who will act

The same verb can appear in all three sentences, but the ending changes the purpose. Do not choose てください simply because the English request begins with “please.” Review てもいい, てください, and たい if the roles are unclear.

Build a polite permission question

1. Choose the action: 座る（すわる, sit）, 使う（つかう, use）, or 撮る（とる, take a photo）.

2. Form the te-form: 座って, 使って, 撮って.

3. Add もいいですか.

4. Supply the place or object that matters.

ここに座ってもいいですか。— May I sit here?

このペンを使ってもいいですか。— May I use this pen?

ここで写真を撮ってもいいですか。— May I take a photo here?

Notice に with 座る in this seat-location expression and で for the place of taking photos. These are verb-specific relationships, not a rule that every physical place takes the same particle.

Understand the response

An unclear or hesitant response is not something to treat as automatic permission. The Japan Foundation’s permission-pattern reference distinguishes granting permission from refusing it. Strong refusal forms can sound strict; a polite everyday refusal may be indirect.

Practice: choose the purpose

1. You want to use a chair yourself. Make the permission question with 座る.

2. You want the other person to open a door. Use 開ける.

3. A staff member says 写真を撮らないでください. Should you begin taking photos?

4. Convert 使う into the form needed before もいいですか.

Answers: 1. ここに座ってもいいですか。 2. ドアを開けてください。 This is a direct polite request; a more deferential setting may call for a question-form request. 3. No; it asks you not to take photos. 4. 使って.

For a full formation table, use the te-form lesson. Then write a permission question about your own classroom, home, or workplace, choosing an action whose permission you can reasonably ask the listener to give.