he是主格，用作主語，也就是一件事情的發出者，he后需加動詞或系動詞。
He is my brother but he doesn't like me.
他是我哥哥，但是他并不喜歡我。
It would be interesting to know what he really believed.
了解他的真實信仰會是很有意思的。
him是賓格，用作賓語，也就是一個動作的接受者，him放在動詞后面。
I send a book to him.
我寄了一本書給他。
The project is still causing him a lot of problems.
這項工程現在仍然給他帶來許多的麻煩。