Many is used with countable nouns and it means a lot of. It can be used with negative, positive and question sentences.

• He has many books.

• Can Mert speak many languages?

• We didn’t see many children there.

• Many dogs and cats exhibit strange behaviors before earthquakes.

• Many animals on this planet are facing extinction.

• It can take many years to master a foreign language.

Much is used with uncountable nouns and it means a lot of. It can be used with negative and question sentences.

• She didn’t drink much milk today.

• Do you have much work?

• Did İlker have much money?

• I’ve gained a lot of weight over the last year because I haven’t been doing much exercise.

• Larry doesn’t have much experience.

• They don’t have much time.

• Much has been said about the issue. (Much information)

• Many have believed him. (many people)
• Many are now suggesting that there may be some alternatives to animal testing.
• Much will be said and written about this problem.
• I don’t know much / many.

of can be used with many and much with determibers like (the, my, your, these, those) gibi belirleyici sözcükler kullanılmalıdır.

• Many people = Many of the people

• Many countries = Many of these countries (many of these / those , much of this / that)
• Much sugar = Much of the sugar
• Many books = Many of your books

Also they can be used with pronouns (you, us…) without determiners.

Many of us Many of you Much of it
• The fire destroyed much of the country’s wildlife.
• Russia is a big country, but much of it is uninhabited.
• The crowded urban environment is a source of stress for many of us.
• Many of those who migrate to urban areas are people with low skill levels.
• Many of our guest rooms overlook our garden.