Linguists regard transitions from irregular to regular verb forms as key markers of grammatical change.

对于语言学家来说，动词由不规则向规则过渡正体现了语法的变迁。

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Derivational affixes can produce new words, some change grammatical classes of words.

派生词缀可以产生新单词，一些改变单词语法等级。

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Thus the author comes to a conclusion that the transformation of words leads to the change of its original quantitative features and, accordingly, the limit on the grammatical forms.

原词类数量特征的限制会相应地引起转化后词类语法形态的限制和变化。

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