11. Words having this particular alternation are still subject to consonant gradation in forms that lack assibilation. 12. They appeared in predictable positions as a result of consonant gradation , like the voiced fricatives. 13. Of the various morphophonological alterations, the most important and complex is the system of consonant gradation . 14. This can result in a'closed'syllable becoming'open'and so trigger consonant gradation : 15. On the other hand, Southern Sami is the only Sami language that does not have consonant gradation . 16. Consonant gradation is a pattern of alternations between pairs of consonants that appears in the inflection of words.17. A detailed system of allophony is reconstructible, known as "'consonant gradation " '. 18. Consonant gradation and assimilation of the't'in "-ta " may be applied.19. There is one phoneme which undergoes consonant gradation when adding an ending to the stem ending in a vowel. 20. Some verbs have so called " alternating stems " or multiple stems with weak-strong consonant gradation between them.