According to available information, there are eight word classes (=part of speech) in English:
noun, adjective, adverb, verb, preposition, pronoun, interjection, conjunction
What is a word class of the following words: four, eight, ten?
In my native language a numeral is a word class. In English it is not. So I am thinking, into which of the eight ones mentioned do these three words belong.
Thank you.