Question

oraciones en ingles con  there is a , there is  not a, is  there an?,  yes there is , not there is not
 3 oraciones de cada una   

Answer 1

THERE IS A LION  
THERE IS NOT  A TIGER
IS THERE AN LION

Answer 2

there is, es para decir que hay algo pero en singular ejemplo:
there is a cap on the table
hay una gorra en la mesa.
yes, there is.
si, hay.
there is not a cap on the table.
no, there is not.