/ë/ is inserted as a transition sound between /n/ and /w/.
The resulting /ëwë/ sequence is realized as /u/.
/ë/ is also inserted between /w/ and /n/.
First person plural /-nan/ is realized as /-n/ in final position after /-ne/.
The vowel of /-ne/ is laxed in a closed syllable.
Note: /w/ is not elided between vowels if the preceding vowel is /u/.