Question

what goes under the pot now cost more than what goes inside it.(ADD QUESTION TAG)​

Answer 1

doesn't it?

question tag-: you are drunk, aren't you?

what u have done is shameless,haven't u?

but in the above case there is no such type of verb.so in this case we use do or does for present tense and did for past tense. remember that question tags are negative if sentence is positive in sense.if sentence is in negative sense, question tags are positive.