A lot is for countable and incountable inn affirmative.
I drink a lot of coffee
I have a lot of candies.
I don't have many grapes
I don't drink much water
Many vs Much vs A lot
Many - use with plural nouns (countable nouns) (Example: There are many people in the plaza today.) -
Much - use with collective nouns and singular nouns (uncountable nouns) (Example: Gerald doesn’t have much money.)
A lot - meaning to a large extent; when used as adverb, it means to greater extent.
- (as a noun) There are a lot of boys in Joy's school.
- (as an adverb) It hurts a lot to see your mother crying.
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