usedn't to

Oh dear there is not such a thing as "usedn’t". Say "I didn't use to like it very much when/while I was majoring/majored in it." I would choose simple past.

The question was caused by one of my dict. (Modern Chinese-English Dictionary). Usedn't appears in it.

But, yes, Word suggests it's wrong.

So that dict. is wrong. Right?

Now my question becomes:

Should it be "didn't use to like" or "used not to like", or "used to not like"?

Thanks for any comments!

"I didn't use to like it". Don't think "use to" as something so different and strange. Negate it in the same way how you negate a verb in past tense.

I went there--- I didn't go there I liked it--I didn't like it I used to do it- I didn't use to do it.

And, such expressions only can be seen at books, or dictionaries made by foreigners. You can'

While handing its usage, should we give some consideration that "used to" can be taken as a semi modal?

Any more comments? And thanks in advance!

Hi,

Back to "usedn't": although I've never heard anybody uttering it, I can tell you for sure that it can appear in Cambridge ESOL exams.
You might want to read some old threads:

Thanks, Tanit!

Your links are helpful, especially that concise

Now, to me, it seems that Americans don't like usedn't to; some Americans even don't like used not to; but didn't use to seems fine universally.