Determiners and quantifiers are words we use in front of nouns. We use determiners to identify things (this book, my sister) and we use quantifiers to say how much or how many (a few people, a lot of problems).

Read clear grammar explanations and example sentences to help you understand how determiners and quantifiers are used. Then, put your grammar knowledge into practice by doing the exercises.  

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In the sentence: the book on the table is mine..we understand that the article is definit (the)

What if we say: that book on the table is mine. is (that) also a definite article in this case or the sentence is wrong.

Hello Akong,

Yes, you can use 'that' and the sentence is grammatically correct. 'that', like 'the', is a determiner, but only 'the' is a definite article.

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All the best,
The LearnEnglish Team

They have eaten it all. In this sentence to me all is an adverb because it is describing how much they have eaten. But a dictinary is saying it is a pronoun. Plz guide.

Hello aseel aftab,

The word 'all' has many uses. You can find good guides here:


However, I would suggest that you try not to worry too much about the labels given to particular parts of speech. We can use 'all' as a pronoun followed by of (all of them) or following an object pronoun (them all), but identifying the name of the form is much less important than knowing what it means and how it is used.



The LearnEnglish Team

What is the difference between all the food and all of the food?

Hello aseel aftab,

All can be used with general or specific meaning; all of can only be used with specific meaning:

All cats have whiskers. [every example of a cat anywhere - general]

All of cats have whiskers.

All these cats are black. [every example of a cat in this group - specific]

All of these cats are black.


Both can be used with nouns (as above).

Both can be used with possessive adjectives (all your cats / all of your cats).

We can only use all of before pronouns:

All of you are my friends.

All you are my friends.



The LearnEnglish Team


What's the difference between a determiner of quantifiers and pronoun. Some dictionaries also say one thing is both pronoun and determiner and their uses are also same so how can we avoid confusions?

Hello aseel aftab,

Words can have different uses, so a word like 'fast' can be an adjective (a fast car), and adverb (go fast) and a verb (fast for a week), for example.

With regard to the names given to these forms, please see my answer to your other question below.



The LearnEnglish Team

Are they not demonstrative adjectives or simply adjectives as they are describing noun? This is what I have read in an english learning book plz guide

Hello aseel aftab,

Different labels can be applied to determiners. You can find a discussion of this on the relevant wikipedia page in the section headed 'Description':



The LearnEnglish Team