YOU SAID:

I've been singing this stupid song, for the sanity of your mother

INTO JAPANESE

私はあなたのお母さんの正気のために、この愚かな歌を歌ってきました

BACK INTO ENGLISH

I've been singing this silly song for your mother's sanity

INTO JAPANESE

私はあなたのお母さんの正気のためにこの愚かな歌を歌ってきました

BACK INTO ENGLISH

I've been singing this silly song for your mother's sanity