Achievement is a type of situation (or state of affairs) that is dynamic and has no conceivable duration in time.
- win, find, recognize, discover, leave, lose, finish, start, stop, begin, catch, arrive
- The bomb exploded .
- He found the keys.
Achievements rarely combine with the progressive aspect, as they designate very short, instantaneous situations, which do not allow a continuous interpretation.
- I noticed/?was noticing his new hair cut.
REF This article has no reference(s) or source(s).
Please remove this block only when the problem is solved.