Editing Allomorph (section)

==In Sámi languages==
The [[Sámi languages]] have a [[trochaic]] pattern of alternating [[Stress (linguistics)|stressed]] and unstressed syllables. The vowels and consonants that are allowed in an unstressed [[syllable]] differ from those that are allowed in a stressed syllable. Consequently, every suffix and inflectional ending has two forms, and the form that is used depends on the stress pattern of the word to which it is attached. For example, [[Northern Sámi]] has the [[causative]] verb suffix -{{Lang|se|hit/-ahttit}} in which ''-{{Lang|se|hit}}'' is selected when it would be the third syllable (and the preceding verb has two syllables), and ''-{{Lang|se|ahttit}}'' is selected when it would be the third and the fourth syllables (and the preceding verb has three syllables):
* ''{{Lang|se|goar·ru'''t'''}}'' has two syllables and so when suffixed, the result is ''{{Lang|se|goa·ru'''·hit'''}}''.
* {{Lang|se|na·nos·m'''it'''}} has three syllables and so when suffixed, the result is ''{{Lang|se|na·nos·m'''ah·ttit'''}}''.

The same applies to inflectional patterns in the Sami languages as well, which are divided into even stems and odd stems.<ref>{{Cite book |last1=Jeffers |first1=Robert |url=https://archive.org/details/principlesmethod0000jeff |title=Principles and Methods for Historical Linguistics |last2=Lehiste |first2=Ilse |publisher=[[The MIT Press]] |year=1982 |isbn=9780262600118 |url-access=registration}}</ref><ref>{{Cite book|last1=Fromkin|first1=Victoria|title=An Introduction to Language|last2=Rodman|first2=Robert|last3=Hyams|first3=Nina|publisher=[[Wadsworth Cengage Learning]]|year=2003|isbn=9781439082416|pages=268–272|edition=9th}}</ref>