As written above, it's common and correct in the US."there didn't usedto be"
In the USA, it would be incorrect to write the verb in the past tense. Only the auxiliary is inflected.thank you!! It helps me a lot but I don't understand why the verb used is in the past tense if it is marked with the auxiliary verb did.
ok, I see...
so in British English the expression there didn't use to be is the correct one, isn't it.
Thank you
I agree with Jeromed and the BBC. It's not an American/British thing, the use of "used" instead of "use" in that sentence is simply incorrect, although it's quite a common error made by native speakers, probably because in conversational English "use to" and "used to" sound almost indistinguishable.
"Used to" is correct in that sentence but not in the other one because of the negative auxiliary "didn't".
For example: "There used to be a shop on the corner selling sweets, now it sells computer games."