There Is and There Are

There Is e There Are são o verbo Haver.
   -There Is é usado em frases no singular.
   -There Are é usado em frases no plural.
Exemplos:
*There is backpack on the table.
*There are some backpacks on the table.
Forma Negativa → usamos Not.
   -Usamos o not depois do verbo da frase.
Exemlpo:
*There are not backpacks on the table.
         ↓
      verbo
                    OU
*There aren't backpacks on the table.