Binandere language

Binandere is a Papuan language spoken in the "tail" of Papua New Guinea.

Phonology
Binandere has 11 consonants: voiced and voiceless bilabials, alveolars, and velars; voiced labial and alveolar nasals; the flap /ɾ/; the voiced bilabial fricative /β/ and the palatal approximant /j/.

Binandere also has the 5 common vowels /ɑ e i o u/ and their five nasal counterparts.

These vowels can be combined to form up to 11 possible diphthongs:
 * Oral: /iu/ /ei/ /eo/ /eu/ /ɑi/ /ɑe/ /ɑo/ /ɑu/ /oi/ /oe/ /ou/
 * Nasal: /ẽĩ/ /ɑ̃ĩ/ /ɑ̃õ/ /õũ/

Evolution
Below are some reflexes of proto-Trans-New Guinea proposed by Pawley (2012):