Found:

Aspect

SEMANTICS: a cover term for those properties of a sentence that constitute the temporal structure of the event denoted by the verb and its arguments. Not all verbs have the same aspectual properties and so may belong to different aspectual classes. The aspect of a sentence is in many languages expressed syntactically and/or morpho-phonologically. EXAMPLE: the opposition between the perfective (I have gone), the imperfective (I went) and the progressive aspect (I am going) in English. Also, it is considered a matter of aspect whether or not the event is bounded (e.g. I ran out of the room) or unbounded (e.g. I ran).

LIT.	Dowty, D. (1979) Tenny, C. (1987) Verkuyl, H.J. (1993) Verkuyl, H.J. (1972)