To better clarify: I would like to find some way (be it just the raw information itself in a pastebin, a dictionary crawler, a website search function, or something else) to determine how many words there are in English that
Are exactly four letters long
Fall into the major word classes, i.e. nouns, verbs, adjectives, adverbs - entirely EXCLUDING prepositions, pronouns, determiners, conjunctions, or interjections
Aren't just other words with added plurality, like the three-letter word Aid being made four letters by turning it into Aids; basically, no words that are included in the dictionary purely as a different form, tense, etc. of an existing word
I can scroll through the final list manually, that's not a problem. I just can't find a site or resource that makes it easy to search words not just by letter length but also by word class. Thank you!