YOU SAID:
His ankles and feet is a good time
INTO JAPANESE
彼の足首と足は楽しい時間です
BACK INTO ENGLISH
his ankles and feet have a good time
INTO JAPANESE
彼の足首と足は楽しい時間を過ごしています
BACK INTO ENGLISH
his ankles and feet are having a good time
INTO JAPANESE
彼の足首と足は楽しい時間を過ごしています
BACK INTO ENGLISH
his ankles and feet are having a good time
That didn't even make that much sense in English.