在形式和意义两个层面，英语时态范畴在建构过程中都呈现这些特点。
Both in form and meaning, the category presents this particular feature in the process of construction.
本文以英语时态范畴为视点，对英语时态系统范畴化过程中的原型效应展开了详细的调查研究。
Centered on the abstract category of tense and aspect, a detailed survey is carried out as to the prototype effects in the categorization of the system.
本文从认知的角度出发，应用典型理论解释英语过去时态范畴的意义，揭示原型理论在其认知过程中的重要作用。
The author explained the English past tense in accordance to the prototype theory from the cognitive view and also revealed the significant role the prototype theory played in its cognitive process.
第二部分是概述时态作为语法范畴的研究。
The second part is a review of the studies on tense as a grammatical category.
英语动词涉及四大语法范畴，包括时态，语态，式态，和体态。
We know that the English verb involves four grammatical categories, including tense, voice, mood and aspect. Aspect is the internal structure expressed by the contextualized verbs.
英语动词涉及四大语法范畴，包括时态，语态，式态，和体态。
We know that the English verb involves four grammatical categories, including tense, voice, mood and aspect. Aspect is the internal structure expressed by the contextualized verbs.
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