nēm has the following vowels:
| vowel | ipa |
|---|---|
| a | a |
| ā | aː |
| e | e |
| ē | eː |
| i | i |
| ī | iː |
| u | u |
| ū | uː |
| y | ʏ |
| yy | ʏː |
| ä | æ |
| ää | æː |
nēm has the following diphthongs:
| diphthong | ipa |
|---|---|
| au | aʊ̯ |
use the following rules to combine vowels when two vowels occur next to each other when combining words or adding suffixes: