YOU SAID:

If he hadn't, he might have found it harder to concentrate on drills that morning.

INTO JAPANESE

そうでなかったら、その日の朝の訓練に集中するのがより難しくなったかもしれません。

BACK INTO ENGLISH

Otherwise, it might have been more difficult to focus on training that morning.

INTO JAPANESE

そうでなければ、その朝のトレーニングに集中するのはもっと難しかったかもしれません。

BACK INTO ENGLISH

Otherwise, it might have been more difficult to focus on training that morning.