1.Achieve:achievement,achiever
2.Create:creation,creator,creative
3.Aim:aimed,aimless
4.Celebrate:celebration,celebrity
5.Expect:expectation,expectance
6.Communicate:communication,communicative
7.Imagine:imagination,imaginary
8.Definite:indefinite,definitely
9.Color:colorless,colorant
10.Forget:forgetful,forgettable