1. Post-positive is necessary in certain institutionalized expressions.
在某些制度化的表达; 或是成语的使用
例如：the Governor General/Princess Royal/poet laureate/times past
2. Post-position is obligatory when the adjective modifies a pronoun.
在形容代名词的时候 (e.g. something, anything, everything, nothing, everyone, anybody,…+ adj.)
例如：something different/nothing wrong/everyone present /those responsible
3. Post-positive adjectives are commonly found together with superlative, attributive adjectives.
前有限定最高级或all, every, only, the few形容词，则以ible或able做字尾的形容词，放在名词后。但possible例外，可放前后。
例如：the shortest route possible/the worst conditions imaginable/the best hotel available/all things imaginable
4. Some adjectives must be placed in the post-position: akin, alive, present, else
有一些形容词必须置于被修饰的名词的后面。
例如：all things alive/everyone present/mankind alone
5. Some adjectives (responsible, involved, concerned) can have different meanings when they are placed in different positions.
有些形容词像responsible, involved, concerned前置或后置意思不同。
例如：
I’m writing to you as you are the person responsible.
I’m writing to you as you are a responsible person.
a responsible person意为「可信赖的人」「可靠的人」
the person responsible 意为「 负责人」、「主管人」
