单词作定语一般要把单词放在这个被修饰词前面,介词短语、副词和句子作定语要放在被修饰词后面.
例如:
I like long pencil.long就做定语用来修饰pencil,表“长铅笔”.
I like the pencil on the table.on the table是介词短语,就要放在pencil后面,表“放在桌子上的铅笔”.
I like the pencil that i bought yesterday.I bought yesterday是个句子,也要放pencil后面,表“昨天我买的铅笔”.
句子做定语也就是定语从句.
The car downstairs is mine.downstairs 是副词,放 pencil后,表“楼下的汽车”.
另外,你可以看看英语中定语的语序: