principal parts

noun

🔊/ˌprɪnsəpl ˈpɑːts/

🔊/ˌprɪnsəpl ˈpɑːrts/

[plural] (grammar语法)

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the forms of a verb from which all the other forms can be made. In English these are the infinitive (for example swim), the past tense (swam) and the past participle (swum).（动词）主要部分，主要形式（英语中有动词的不定式、过去时和过去分词）Topics Languagec2