Verb Only (when the verb acts the same on all subjects - e.g., save (x), save(y)

Verb Noun (when the verb acts differently (different logic) on each subject processPurchaseOrder(), processSalesCommission()

Qualified Verb (Bidirectionally Link(x,y)) versus link(x,y); used to qualify the intent of the verb (changes functional requirement, unlike most adverbs which only apply to NFR)

Verb Mechanism (when the logic is changed more by the mechanism than by the subject)