Question

correct the question tag mistakes.
a)They live in Curitiba,doesn't it?

Answer 1

O correto seria "They live in Curitiba, don't they?"
"Does/doesn't" so corresponde a a terceira pessoa do singular. Todo o resto eh com do/don't.
"I don't live" is correct.
"You don't live" is correct.
"He/she/it doesn't live" is correct.
"We don't live" is correct.
"You don't live" is correct.
"They don't live" is correct.