分配限定词 all 谈的是一整个群体，特别强调没有任何事物被排除在外。all 用于分配词的形式有很多种。
all 可以接不可数名词和可数名词；在这种用法上，all 是以群体的概念来论及事物，而非指独立的个体。
举例
- All cheese contains protein.
- I like all dogs.
- All children need affection.
- This soap is for all purposes.
all 可以接有定冠词 the 为首的不可数名词和可数名词复数，或接所有格代词。在这种情况下，它论及的是一个具体丶实质的群体，而不是指概念上的群体。在这样的用法上，of 可以紧接在 all 后，意思并不会改变。
举例
- All the people in the room were silent.
- All of the birds flew away.
- Have you eaten all the bread?
- I will need all of the sugar.
- I've invited all my friends to the party.
- I've used up all of our eggs.
- You wasted all your time.
all 可以接 of + 代词复数形。
举例
- All of us are going.
- He scolded all of you.
- Did you find all of them?
all 可以用于问句和感叹句，后面接单数指定代词 this 或 that + 可数名词。在这样的用法上，of 可以紧接在 all 后，意思并不会改变。
举例
- Who has left all this paper on my desk?
- Look at all this snow!
- Why is all of that sugar on the floor?
- Where did all of this confetti come from?
all 可以用于问句和感叹句，后面接复数指定代词 these 或 those + 可数名词。在这样的用法上，of 可以紧接在 all 后，意思并不会改变。
举例
- Look at all those balloons!
- Where did all of those books come from?
- Why are all these children crying?