YOU SAID:

I don't know how to do it was the first time in the world of the most important thing is the best of all.

INTO JAPANESE

私はそれを行う方法がわからない、最も重要なことの世界ではじめてのことがすべてのベストです。

BACK INTO ENGLISH

I do not know how to do it, most importantly the world's first is best of all.

INTO JAPANESE

私はその使い方を知りません。

BACK INTO ENGLISH

I do not know how to use it.

INTO JAPANESE

私はその使い方を知りません。

BACK INTO ENGLISH

I do not know how to use it.