YOU SAID:
my son loves his karate lessons
INTO JAPANESE
私の息子は彼の空手のレッスンが大好き
BACK INTO ENGLISH
My son loves his karate lesson
INTO JAPANESE
私の息子は彼の空手のレッスンが大好き
BACK INTO ENGLISH
My son loves his karate lesson
That didn't even make that much sense in English.