Lengryis

Setting
Lengryis is a mixed language (like Michif in Canada) spoken in the future. The languages it descended from were English, Japanese and Thai.

Monophthongs
Lengryis has a simple 5 vowel system:

Diphthongs
There are 4 diphthongs, /ea/, /iu/, /ai/ and /au/.

Vowel / Glide combinations

 * /i/ must always be preceded by a glide, either /j/ or /w/.
 * /ɯ/ becomes rounded to /u/ after /w/. It cannot be preceded by /w/
 * /a/ cannot be preceded by /j/.
 * If /ea/ is preceded by /j/, it is pronounced as [ia].
 * In rapid speech, /iu/ is sometimes pronounced as [y].
 * After /j/, /au/ is pronounced as /ɛu/.
 * After /w/, /au/ is pronounced as /ɒu/.
 * In other cases, /au/ is sometimes prononuced as /ɒ/ in rapid speech.