If the singular absolutive form ends with -n, it has the underlying form of -ti /tə/. This form will show in the absolutive dual and plural forms. Therefore: tiŋmisuun (airplane) → tiŋmisuutik (two airplanes) and tiŋmisuutit (multiple airplanes)Regarding nouns that have an underlying /ə/ (weak i), the "i" will change to an "a" and the previous consonant will be geminated in the dual form. Therefore:Kamik (boot) → kammak (two boots). If the singular form of the noun ends with -k, the preceding vowel will be elongated. Therefore: savik (knife) → saviik (two knives). On occasion, the consonant preceding the final vowel is also geminated, though exact phonological reasoning is unclear.