YOU SAID:

There's no way my litter sister can be this incompetent

INTO JAPANESE

私のごみの姉妹がこの無能な人になることはできません

BACK INTO ENGLISH

My girls sister can not become this incompetent person

INTO JAPANESE

私の女の子の妹はこの無能な人をなることはできません。

BACK INTO ENGLISH

My girl's sister cannot be this incompetent people.

INTO JAPANESE

自分の娘の妹は、この無能な人々 をすることはできません。

BACK INTO ENGLISH

His daughter sister cannot be this incompetent people.

INTO JAPANESE

彼の娘の妹は、この無能な人々 をすることはできません。

BACK INTO ENGLISH

His daughter sister cannot be this incompetent people.