赖世雄教你学英语语法
关系词
1-15：形容词从句可变为不定式短语
关系代词所引导的形容词从句中，若该关系代词之前有介词时，可变换成不定式短语
例：he has no house in which he can live.
=he has no house in which to live.
=he has no house to live in.
he has no house which to live in.(x)
（他没有房子住。）
lend me your pen with which i can write my address.
=lend me your pen with which to write my address.
=lend me your pen to write my address with.
lend me your pen which to write my address with.(x)
（把你的笔借我，我好写我的住址。）