Bonsoir
There is + groupe nominal singulier. ► there is a chair
There are + groupe nominal pluriel. ►there are two tables
ATTENTION ►
Lorsque suivi d'une énumération, c'est le 1er élément qui dictera le singulier ou le pluriel.
EX:
There is a boy, two girls and a cat in this family.
There are two girls, a boy and a cat in this family.
There is a sofa and two armchairs.
There are two armchairs and a sofa.
bonne nuit/journée ☺☺☺