Possessive Forms in the Negative?

Hi,

I dont know how to eloquently word this question, so you will have to excuse my jibber-jabber.

Example sentence:
“There is something in the letter which i dont want to accept” =
“Mae 'na rhywbeth yn y llythyr nag dw i’n moyn derbyn”

What I want to know is, why is the inflected form never used in the negative? (or is it?)

When the sentence is positive, for example:

“Mae 'na rhywbeth yn y llythyr fy mod i’n moyn derbyn” =
“There is something in the letter that I want to accept” -
We can use the “fy mod i’n” form.
Is there an inflected form in the negative when using “nag/nad/na (I get these three confused tbh)”?

My use of labels relating to grammar might be a bit off, but if you understand what I am trying to ask, your help will be greatly appreciated. Thanks :slight_smile:

The “na” itself is the thing you’re looking for, I think (I dunno what the label would be either!)

So, in more formal Welsh, “nid wyf eisiau” would be “I don’t to” - the negative particle marker thingy is “ni”.

But when we’re using it to join with another clause the “ni” becomes “na”, so “roeddwn yn dweud nad wyf eisiau”, or - in a more usual colloquial Welsh, “ro’n i’n deud na dwi isio”.