I checked more dictionaries and the phonetic transcription (IPA) for the word: 'copy' is [ˈkɑp i]. It's two syllables with stress on the first syllable.
I know that the plural of "copy" is "copies" and we add that -es suffix. As far as I know the -es suffix phonetically looks like [ɪz]. However, this doesn't make sense to me:
copy [ˈkɒp i]
copies [ˈkɒp i ɪz]
There is a long "i" vowel in the singular and the ɪ in ɪz is a short vowel. Can someone explain me what is the phonetic transcription of the word "copies" more exactly?