for the last fucking time

[rone]

"Didn't this used to be..." is WRONG. "Did" is past tense, so "used" need not be. "Didn't this use to be..." is the right way to write that. Hell, i even found this written wrong in American Gods.

Comments

Ridiculous backformation.

[vardissakheli.livejournal.com]

"Used to" is not a past tense; it's a past participle, and "was" is elided. If you're going to insist on a correct inversion of the expression, it would be "Wasn't this used to . . . ?" and nobody would understand it. All the more reason to insist on it, of course.