请问英语语法1、I have wanted to be a fireman.2、 have wanted to beco

请问英语语法
1、I have wanted to be a fireman.
2、 have wanted to become a fireman.
to 后边需要加动词原形,问什么1句后边是Be,2句后边是become 请问这两个句子那个语法是正确的.