YOU SAID:
i have not washed my clothes in months
INTO JAPANESE
私は何ヶ月も服を洗っていません
BACK INTO ENGLISH
I haven't washed my clothes for months
INTO JAPANESE
私は何ヶ月も服を洗っていません
BACK INTO ENGLISH
I haven't washed my clothes for months
That didn't even make that much sense in English.