Either (is,are) suitable

To determine whether to use "is" or "are" in a sentence, you need to consider the subject of the sentence and whether it is singular or plural.

If the subject of the sentence is a singular noun, such as "tree," "cat," or "book," you would use the verb "is." For example:

- The tree is tall.
- The cat is sleeping.
- The book is on the shelf.

If the subject of the sentence is a plural noun, such as "trees," "cats," or "books," you would use the verb "are." For example:

- The trees are tall.
- The cats are sleeping.
- The books are on the shelf.

In sentences with pronouns, such as "he," "she," or "it," you would also use "is" for singular pronouns and "are" for plural pronouns. For example:

- He is happy.
- She is running.
- It is hot.
- They are happy.
- We are running.
- They are hot.

So, when choosing between "is" or "are," consider whether the subject is singular or plural, and use the appropriate form of the verb accordingly.

www.chompchomp.com/terms/correlativeconjunction.htm

Go here and study Correlative conjunctions. Pay special attention to the section on verb agreement.

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