i want to be a doctor为什么后面要有个原型Be动词呢?前面不是有了个want一般动词吗?不是说一个句子不会存在两个动词吗?

英语翻译用I want to be a. 英语作文 i want to be a I want to be a gentle 英语翻译I want to be a mermaid I want to be a real I want to be a paintet是什么意思 I want to be a little boy. I want to be a winner是什么意思 Just be a person i want to I want to be a bad I don't want to be a i want to be a star I want to be a dancer是什么意思 I want to be a dancer是什么意思 I want to be I want to be 选择My parents__a teacher A.want me to B.want I to be C.want I be D.want me to beA.want me to B.want I to be C.want I be D.want me to be 翻译I don't want to be a women ,i just want to be a man