A […] more terminological matter concerns the use of such terms as “Aspect” or “Mode of Action” (Aktionsart) for the various distinctions within the typology of SoAs [states of affairs]. I will reserve the term “Aspect” for those distinctions which are expressed by grammatical means […].
- Dik (1989), a pag.90

When we consider how the term “aspect” is used in literature, we find that a number of different semantic distinctions are covered by this term, and that it is not altogether clear what the common denominator of these distinctions could be. We shall therefore use the pre-theoretical term “aspectuality” to cover all these distinctions, and reserve the term Aspect for those aspectuality distinctions which are grammatically rather than lexically expressed.
- Dik (1989), a pag.186