YOU SAID:
the teacher needs to lose weight
INTO JAPANESE
先生は体重を減らす必要がある
BACK INTO ENGLISH
Teacher needs to lose weight
INTO JAPANESE
教師は体重を減らす必要がある
BACK INTO ENGLISH
Teachers need to lose weight
INTO JAPANESE
教師は体重を減らす必要がある
BACK INTO ENGLISH
Teachers need to lose weight
That didn't even make that much sense in English.