hay + noun [singular or plural]
In the Spanish language, "Hay" is used to say there is or there are. Hay is also an impersonal form that comes from the third person of the verb haber in the present tense, literally meaning, it has. A tip to use Hay is that in Spanish, you use Hay whether it is followed by one item or many, unlike in English.
Hay unas cHicas.
There are some girls.
Hay un perro negro.
There is a black dog.