Definition of form class
: a class of linguistic forms that can be used in the same position in a construction and that have one or more morphological or syntactical features in common
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“Form class.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/form%20class. Accessed 25 May. 2022.
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Time Traveler for form class
The first known use of form class was in 1921
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