YOU SAID:

How many times will I need to do this

INTO JAPANESE

何回かこれを行う必要があります

BACK INTO ENGLISH

Need to do this several times

INTO JAPANESE

これを数回行う必要があります。

BACK INTO ENGLISH

You must do this several times.

INTO JAPANESE

これを数回行う必要があります。

BACK INTO ENGLISH

You must do this several times.