Serve grammatical functions, do not change lexical category.
Only eight in English: plural "s", possessive "s", third person singular "s", past tense "ed", "ing", past participle "en", comparative "er", superlative "est".
Conclusion
Understanding morphemes helps in identifying word structures.
Future lectures will cover morphemes vs. allomorphs and morphological analysis.
End of video. Next topics: allomorphs and morphological analysis.