English \tr\ can also be characterized phonetically as a non-strident retroflex affricate, even though it is phonologically a cluster, since it contrasts with \pr\ and \kr\.
One way to satisfy these constraints is to front the vowel, but another resolution is to retract the coronal to retroflex, since retroflexes are compatible with a back tongue body.
Since the retroflex suffix \y\ is also coronal, it conflicts with \n\, but not with \<\.
The lateral /l/ also has a retroflex allophone occurring under the same conditions as its nasal counterpart.
The survey focuses on the interaction between the coda nasals and the retroflex suffix.
The first is rhotacization of the syllable final, and the second is lenition of retroflex obstruent initials.
The conflict is resolved by changing the retroflex to a palatoalveolar.
After back vowels (36c), retroflexion is acceptable since the retroflex can be realised with a back tongue body.
