Образуйте существительные из следующих глаголов и прилагательных to speak to buy to destoroy to create to dump to picnic to operate to illustrate to radiate to cooperate calm ill soft ready dark

To speak - speaker
to buy - buyer
to destroy - destroyer/destruction
to create - creator
to dump - dump
to picnic - picnic
to operate - operator
to illustrate - illustrator
to radiate - radiator
to cooperate - cooperator
calm - calmness
ill - illness
soft - softness
ready - readiness
dark - darkness