YOU SAID:

i’m going to do your mom hard

INTO JAPANESE

私はあなたのお母さんを頑張ります

BACK INTO ENGLISH

I will try hard on your mother

INTO JAPANESE

私はあなたのお母さんに頑張ろう

BACK INTO ENGLISH

I will do my best for your mother

INTO JAPANESE

私はあなたのお母さんに最善を尽くすつもりです

BACK INTO ENGLISH

I will do my best for your mother