YOU SAID:

Robert was very saddened by his defeat.

INTO JAPANESE

ロバートは、彼の敗北によって非常に悲しかったです。

BACK INTO ENGLISH

Robert is very sad by his defeat.

INTO JAPANESE

ロバートは彼の敗北でとても悲しいです。

BACK INTO ENGLISH

Robert is very sad at his defeat.

INTO JAPANESE

ロバートは彼の敗北でとても悲しいです。

BACK INTO ENGLISH

Robert is very sad at his defeat.