Competence vs Competences

Competence vs Competences
 

I know how to pronounce competence /ˈkɒmpɪtəns/ my question is how do I pronounce the plural, where does the stress fall? 1st syllable or 3rd one?
Thanks in advance.:shh:

The plural is a 4 syllable word, comp - it - tense - siz .. stress sounds to me when I say it outloud on the last syllable, but I could be wrong.

Then, competen´ces. Thank you, I coundn´t find it in any dictionary. I really appreciate.

I would still stress the first syllable myself, making it pro-proparoxytone (=sobresdrújulo)

You mean the 1st and last???

No, just the first.

Primary stress on first syllable, secondary on third.