Definition of principal parts in English:

principal parts

Syllabification: prin·ci·pal parts


  • The forms of a verb from which all other inflected forms can be deduced, for example, swim, swam, swum.
    More example sentences
    • Asked to recite the principal parts of the verb ‘to eat’, the irrepressible Hyman Kaplan suggested the following: ‘eat, ate, full.’
    • The stronger the principal parts of speech, the stronger the writing,’ ASNE judge Cunningham said.
    • Better grammars (like Smyth) will give you that sort of information in their full discussion of the morphology of verbs; they will also give you lists of principal parts of most irregular verbs.

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Word of the day astrogation
Pronunciation: ˌastrəˈgāSHən
(in science fiction) navigation in outer space