We use much/many in negative sentences and questions. We use many before plural countable nouns and much before uncountable nouns. We don’t normally use them in affirmative sentences.
We use how many + plural nouns and how much + uncountable nouns to ask about quantity. You can review countable and uncountable nouns here.
We can also say How much is it? to ask about the price of an item.
We use a lot of before both plural countable and uncountable nouns to talk about big quantity. We normally use a lot of in positive sentences.
We can say quite a lot of to talk about medium quantity.
It is also possible to use a lot of in negative sentences and questions.
We must always use a lot of including of before a noun. However, we can use a lot (without of) at the end of a sentence or in short answers.
We use a few before plural countable nouns and a little before uncountable nouns in affirmative, negative and interrogative sentences to talk about small quantity.
We can also use not many + plural countable or not much + uncountable nouns. The meaning is similar.
When we want to talk about zero quantity, we can use no + noun or not…any + noun. The meaning is the same.
In short answers we use none.
We use many before plural (countable) nouns and much before uncountable nouns. We use them in negative sentences and questions. We don’t normally use them in affirmative sentences.
Note that we don’t normally use much/many in affirmative sentences, but we can use too much and too many in affirmative sentences.
We use how many and how much to ask about quantity.
We use a lot of or lots of (more informal) before both plural (countable) and uncountable nouns. We normally use them in positive sentences.
We must always use a lot of or lots of including of before a noun. However, we can use the expressions a lot or lots (without of) at the end of a sentence.
We use (a) few before plural (countable) nouns and (a) little or a bit of (more informal) before uncountable nouns.
A few means ‘some but not many; enough’, and a little means ‘some but not much; enough’ .
Few/little mean ‘almost none; not enough’.
Normally, the difference between a few/little (WITH a) and few/little (WITHOUT a) is that a few/little is positive in meaning, and few/little is negative. Compare:
We use some in affirmative sentences and any in negative sentences and questions.
Both some and any can be used before countable and uncountable nouns. But if we use them before a countable noun, the noun must be in the plural form.
We use some (NOT any) in interrogative sentences when we are offering or requesting (=asking for) something.