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All is used when you are thinking of a collection as a whole rather than its individual items.
Every is used to refer to each individual item.
It is often a difference in form more than in meaning. For example, all of us means the same thing as every one of us.
All can be a pronoun all by itself, whereas every cannot. Example:
All is well.
However, we use everyone/everything rather than all by itself
Everyone laughed at his jokes
Everything was a mess
We sometimes use all after the noun it refers to:
- His songs all sound much the same to me.
- All of his songs sound…
- We all think Ann’s working too hard.
- All of us think…
Notice that we usually put all after the verb be and after the first auxiliary verb:
They are all tired.
You should all get a pen to answer the questions.
We use all to make very general statements:
All cars have breaks
All students must wear uniforms
All information is confidential
We use all (of) before determiners plus nouns to make more specific statements
All (of) these cars are for sale
All (of) the information you asked for is on our web site
Before singular countable nouns we usually use the whole rather than all the:
They weren’t able to stay for the whole concert ( rather than…for all the concert)
Often we can use every or each with little difference in meaning.
Every means all things or people in a group of three or more.
We use every when we talk about something happening at regular intervals:
Every single day
Every so often
Every now and again (occasionally)
There’s a bus every ten minutes
Take two tablets every four hours
We use every when we want to emphasize “as many/much as possible” with nouns such as possibility, chance, reason, success.
She has every chance of success in her application for the job
He had every opportunity to complete the work.
We wish you every success in your new job
We use every after virtually, almost, nearly...to emphasise we are talking about a group as a whole:
His team lost almost every game
We run nearly every day
We use each when we are talking about two or more things:
I only had two suitcases, but each one weighed over 20 kilos.
We use each as a pronoun:
I asked many people and each gave the same answer.
We use each of (not every of) before determiners with plural nouns:
Each of her cars was a different colour
We use each of before plural pronouns:
Each of you must work alone
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