Word classes
Words that can only belong to one class
- In English, many words belong to just one class.
- One way to identify the class of some words is to look at the way they end:
-th, -ence, -ity or -ness are usually noun endings
-ly is usually an adverb ending
-able is usually an adjective ending
-ate is usually a verb ending
More info
- Suffixes (scroll down to 'Derivational suffixes') (EnglishClub)