-ness

change adjectives into nouns that describe qualities or states. Kind-Kindness

-ity

change adjectives into nouns that describe states, qualities, or conditions. Stable-stability

change adjectives or verbs into nouns that represent states, qualities, or actions. Confident-confidence

-ment

change adjectives or verbs into nouns that represent actions, processes, results, or states. Improve-Improvement

​-tion ; -sion

change verbs into nouns that represent actions, processes, states, or results. Educate-Education

change nouns into nouns that represent status, condition, or collective identity. Friend-Friendship