S 十 V 主谓结构 S 十 V 十 F 主系表结构 S 十 V 十 O 主谓宾结构 S

主谓：I swim.He sings.We dance.主系表：I am a teacher.He is handsome.We are young.主谓宾：I love you.I hate you.You eat food.主谓双宾：he gives me some money.I lent her a book.She asked me a question.最后：I buy a cake for her.I give a book to him.She wants me to be a teache