Explanations:Quantifiers are words that indicate the quantity of a noun. They are used to modify nouns and provide information about the amount or number of something. In English, there are different types of quantifiers, and they are used depending on whether the noun is countable or uncountable.
Countable nouns are nouns that can be counted individually, such as "car parks," "books," "people," and "apples." Uncountable nouns, on the other hand, cannot be counted individually and are often abstract or mass nouns, such as "water," "information," "advice," and "furniture."
When dealing with countable nouns, the quantifier "many" is used to indicate a large number. For example, "There are many car parks in the downtown of the city." In negative sentences, "many" is still used to indicate a large number, but it is negated to express the idea that there is not a large number. For instance, "There aren't many car parks in the downtown of the city."
Other quantifiers that can be used with countable nouns include "a few," "several," and "a lot of." However, "a lot of" is not typically used in negative sentences. Instead, "many" is the preferred quantifier in negative sentences to indicate a large number of countable items.
For uncountable nouns, the quantifier "much" is used to indicate a large amount. For example, "There isn't much water in the bottle." In this case, "much" is used to indicate that there is not a large amount of water.
It is important to note that "plenty" is often used to indicate a sufficient amount, but it is not typically used in negative sentences. "Plenty" is more commonly used in positive sentences to express that there is enough of something. For example, "There is plenty of water in the bottle."
Similarly, "some" is used to indicate an unspecified amount, but it does not convey the idea of a large quantity. "Some" is often used in negative sentences to indicate the absence of a specific amount, but it does not express the idea of a large number or amount. For example, "There isn't some water in the bottle" would be incorrect; instead, "There isn't much water in the bottle" would be the correct usage.
In summary, the correct quantifier to use in the sentence "There aren't ..... car parks in the downtown of the city" is "many" because "car parks" is a countable noun, and "many" is the appropriate quantifier to indicate a large number in negative sentences.