principal parts 
plural noun Grammar
The forms of a verb from which all other inflected forms can be deduced, for example swim, swam, swum.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.
- outside callipers
- outside child
- outside director
- outsidedness
- outside edge
- outside forward
- outside half
- outside-inside
- outside interest
- outside job
- outside leaf
- outside left
- outside line
- outside linebacker
- outside loop
- outsidely
- outside man
- outside money
- outsideness
- outside of
- outsider
- outsider art
- outsider artist
- outsiderdom
- outsiderhood