YOU SAID:

This certainly is wasting both my time and energy...

INTO JAPANESE

これは確かに私の時間とエネルギーを無駄です.

BACK INTO ENGLISH

This is certainly wasteful of my time and energy.

INTO JAPANESE

これは確かに私の時間とエネルギーの無駄です。

BACK INTO ENGLISH

This certainly is a waste of my time and energy.

INTO JAPANESE

これは確かに私の時間とエネルギーの無駄です。

BACK INTO ENGLISH

This certainly is a waste of my time and energy.