MANY + plural countable nouns

e.g.: many things, many students

Also used for questions and negative sentences

MUCH + uncountable nouns

e.g.: much sugar, much money

Also used for questions and negative sentences.

A LOT OF + countable and uncountable nouns

ONLY used in positive sentences.

PLENTY OF / LOTS OF + countable and uncountable nouns : are only used in SPOKEN English

A GREAT DEAL OF / A LARGE NUMBER OF + countable and uncountable nouns are used in WRITTEN English

(A) FEW + countable nouns

E.g.: There are few potatoes

(A) LITTLE + uncountable nouns

E. g.: There is little milk.

With "few" and "little", we used "a" to say when it's enough, i.e. to say we have as much of the product as we need.

NB. Comparative adjective

There are fewer people than last year.

We have less free time than last year.

Collective quantifiers used with the infinitive:

MOST OF US, SOME OF US, (A) FEW OF US, ALL OF US, NONE OF US

Collective quantifiers used with the third person mark:

NEARLY EVERYBODY, EVERYBODY, NOBODY, HARDLY ANYBODY

examples:

Some of us usually eat margarine.

Everybody uses olive oil.

A few of us don't usually eat chips

All of us drink milk at breakfast