句子：If you are interested in finding an article about computers,a university library would all kinds of articles than a public library.为什么这个句子里从句用的是一般现在时,主句却要用一般过去将来时?（全篇文章时态大部分均为一般现在时）不好意思，would后面少了个have。

句子：
If you are interested in finding an article about computers,a university library would all kinds of articles than a public library.
为什么这个句子里从句用的是一般现在时,主句却要用一般过去将来时?
（全篇文章时态大部分均为一般现在时）
不好意思，would后面少了个have。