Divide the elements into the groups
Noun suffixes
We can use -ance/-ence/-cy/-ness/-ity to form nouns from adjectives and verbs:

• perform + -ance = performance;
• exist + -ence = existence;
• private + -cy = privacy;
• happy + -ness = happiness;
• creative + -ity = creativity.

Choose the suffixes which we can add to the given words to form nouns.

Important, Appear, Enter, Annoy, Depend, Exist, Patient, Differ, Secret, Private, Accurate, Literate, Kind, Happy, Lazy, Calm, Secure, Active, Creative, Generous

-ance	-ence	-cy	-ness	-ity