- The choice between the phrases there is and there are at the beginning of a sentence is determined by the noun that follows it.
- Use there is when the noun is singular (“There is a cat”). Use there are when the noun is plural (“There are two cats”).
There Is vs. There Are
You probably know that the choice between is vs. are depends on a noun. In most sentences, the noun comes before the verb. But in sentences that begin with there is and there are, the noun comes later.
In the sentence above, cat is singular, so it requires there is.
In the sentence above, opportunities is plural, so it requires there are. (Don’t let the word many throw you off—concentrate on the noun.)
There Is a Number of vs. There Are a Number of
There are a number of unnamed stars in our galaxy? There is a number of unnamed stars in our galaxy? It’s difficult to tease out whether you should use is or are in a construction like this. The verb is being pulled toward there, number, and stars all at once.
But if you really can’t rewrite it, you’ll have to make a choice. Use is if you want to emphasize the group; use are if you want to emphasize the individual members.
It’s the same with other collecting phrases, like a variety of.
There Are a Lot of
Use there are when you’re talking about “a lot” of something.
There Is vs. There Are With a Series of Items
When you’re making a list of things, sometimes there are sounds wrong:
There are sounds bad because the noun that follows it, kitchen, is singular. Even though you’re really talking about multiple things, (a kitchen, a living room, a bedroom), it’s often better to use the singular verb is in a construction like this.
Some language commentators still insist on using are in sentences like this despite the awkwardness, but actual usage is extremely mixed. Remember, if the sentence sounds awkward either way, you can always rewrite it to avoid the “there is/are” problem altogether.
from Grammarly Blog