这几句哪些是对的,哪些是错的?

这几句哪些是对的,哪些是错的?这几句哪些是对的,哪些是错的?①He often accompanies her mother to go shopping.②He often accompany her mother to go shopping.③He accompanies her mother to go shopping.④He accompany her mother to go shopping.⑤I often accompanies my mother to go shopping.⑥I often accompany my mother to go shopping.⑦I accompanies my mother to go shopping.⑧I accompany my mother to go shopping.