YOU SAID:
i slept with your mother last night
INTO JAPANESE
私は昨夜あなたのお母さんと寝ました
BACK INTO ENGLISH
i slept with your mother last night
INTO JAPANESE
私は昨夜あなたのお母さんと寝ました
BACK INTO ENGLISH
i slept with your mother last night
That didn't even make that much sense in English.