Suffix to become nouns

Suffix to become nouns

 This is some link you can watch

https://www.youtube.com/watch?v=ucX5iHGwS_k

Suffix	Root	Meaning (root+suffix)
-Ness	Adjective	-Noun Happy Happiness Sad Sadness Weak Weakness Good Goodness Ready Readiness Tidy Tidiness Forgetful Forgetfulness
-Ity	Adjective	-Noun Possible Possibility Probable Probability Responsible Responsibility Complex Complicity Hilarious Hilarity Scarce Scarcity
-Ment	Adjective	-Noun Merry Merriment
-Ance/ence	Adjective	Important Importance Absent Absence Silent Silence Independent Independence