there are
They can be
There are introduces the existence or presence of multiple things: There are three reasons I can't go, There are too many cooks in this kitchen.
It's the plural form of "there is," with "there" serving as a grammatical placeholder rather than indicating location.
In casual speech, "there's" often substitutes even for plural subjects: There's cookies in the jar.
- actualityState of existing fact
- occurrenceSomething that takes place
- availabilityState of being obtainable
- presenceState of being somewhere
- signs of lifeEvidence of living presence
existence · appearance · how many · being · enumeration · quantification · some · reality · manifestation · emergence · auxiliary verbs · subject-verb agreement · somewhere · within · located · assertion · pluralization · found