YOU SAID:

now I really wish that I knew how to swim

INTO JAPANESE

今私は本当に私は泳ぎ方を知っていたことを望みます

BACK INTO ENGLISH

Now I really I hope that knew how to swim

INTO JAPANESE

今私は願って泳ぐ方法を知っています。

BACK INTO ENGLISH

Now I know how to swim, I hope.

INTO JAPANESE

今私は泳ぎ方を知っていると私は願っています。

BACK INTO ENGLISH

I hope now I know how to swim.

INTO JAPANESE

今泳ぐ方法を知っていると思います。

BACK INTO ENGLISH

I think you know how to swim now.

INTO JAPANESE

今は泳ぐ方法を知っていると思います。

BACK INTO ENGLISH

I think you know how to swim now.