YOU SAID:

I want to go swimming

INTO JAPANESE

泳ぎに行きたいです。

BACK INTO ENGLISH

Swimming is you want to go.

INTO JAPANESE

水泳は行きたいです。

BACK INTO ENGLISH

You want to go swimming.

INTO JAPANESE

あなたは泳ぎに行きたいです。

BACK INTO ENGLISH

You want to go.

INTO JAPANESE

どこに行きたいですか？

BACK INTO ENGLISH

Do you want to go?

INTO JAPANESE

どこに行きたいですか？

BACK INTO ENGLISH

Do you want to go?