YOU SAID:

When I ate the gun, I saw a grim look stretch across your whitening face.

INTO JAPANESE

私が銃を食ったとき、私はあなたの白色の顔を横切って厳しい表情が伸びているのを見ました。

BACK INTO ENGLISH

When I ate the gun, I saw a stern expression stretching across your white face.

INTO JAPANESE

銃を食うと、白い顔に厳しい表情が広がっていました。

BACK INTO ENGLISH

When I ate the gun, there was a severe expression on my white face.

INTO JAPANESE

銃を食うと、白い顔に厳しい表情が浮かんだ。

BACK INTO ENGLISH

When I ate my gun, I had a stern expression on my white face.

INTO JAPANESE

銃を食べていた時、白い顔に厳しい表情がした。

BACK INTO ENGLISH

When I was eating a gun, I had a stern expression on my white face.

INTO JAPANESE

銃を食べているとき、白い顔に厳しい表情がしていました。

BACK INTO ENGLISH

When I was eating a gun, I had a stern expression on my white face.