YOU SAID:

When will you be needing this?

INTO JAPANESE

あなたはいつこれを必要としますか？

BACK INTO ENGLISH

When do you need this?

INTO JAPANESE

これはいつ必要ですか？

BACK INTO ENGLISH

When is this necessary?

INTO JAPANESE

この取り調べは　必要ですか？

BACK INTO ENGLISH

Is this necessary?

INTO JAPANESE

この取り調べは　必要ですか？

BACK INTO ENGLISH

Is this necessary?