Question

regras para there is there are there isn't there aren't

Answer 1

there is=  afirmativo singular
there are= afirmativo plural
there isn't= negativo singular
there aren't= negativo plural 

Answer 2

THERE IS-USADO NO SINGULAR
THERE ISN'T-USADO NO SINGULAR TAMBÉM
THERE ARE-USADO NO PLURAL
THERE AREN'T-TAMBÉM USADO NO PLURAL