adv.
Certainly is used with these adjectives: ↑ false , ↑ guilty , ↑ interesting , ↑ true , ↑ understandable , ↑ useful , ↑ willing , ↑ worth
Certainly is used with these verbs: ↑ deserve , ↑ help , ↑ hope , ↑ improve , ↑ lead , ↑ merit , ↑ need , ↑ prefer , ↑ recommend , ↑ remember , ↑ suggest , ↑ warrant