Tenny ( 1987 ) observes that accomplishments differ from achievements only in terms of event duration , which is often a question of granularity .
grammaticalizing aspect and affectedness
Carol Tenny
Accomplishments and achievements both express a change of state , and hence are temporally bounded ( telic ) ; achievements are punctual , whereas accomplishments extend over a period of time . Tenny ( 1987 ) observes that accomplishments differ from achievements only in terms of event duration , which is often a question of granularity . From typological studies , it appears that states , change of states , and activities form the most basic ontology of event types .
@@CITATION observes that accomplishments differ from achievements only in terms of event duration , which is often a question of granularity .