I can borrow you the book.borrow的主语只能I can borrow you the book.borrow的主语只能是自己吗?可不可以换成i can lend you thebook

I can borrow you the book 是错误的说法。I can lend you the book 是正确的说法。
因为borrow 是你从别人那儿借，而 lend 是你把东西借给别人。
借别人书的时候要用 borrow...from...
第一句如果是I can borrow the book from you 就对了。

主语I 当然可以替换成其余的人称代词,本句话不该是borrow（借入）,而应是lend（借出）.
She can lend you the book.
He can lend you the book.
We can lend you the book.
They can lend you the book.