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。
Linguists regard transitions from irregular to regular verb forms as key markers of grammatical change.
研究发现，随着二语水平的提高，学习者从依靠动词过渡到依靠构式来理解名转动词句子。
The result demonstrated that with the improvement of language proficiency, L2 learners comprehended the sentence by transiting from depending on verb to depending on construction;
但目前，对于情态的研究能够结合语篇，利用语料库，从对情态动词的研究过渡到情态系统的研究还远远不够。
Until now, there are not enough researches on modality system, which can combine modality with text in virtue of corpus.
但目前，对于情态的研究能够结合语篇，利用语料库，从对情态动词的研究过渡到情态系统的研究还远远不够。
Until now, there are not enough researches on modality system, which can combine modality with text in virtue of corpus.
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