D.R. is ignorant of the highly progressive aspect of the social security tax.
From the economist.com
However, non-motion verbs in Russian do not have the progressive aspect.
From the en.wikipedia.org
The perfect can be combined with the progressive aspect, a type of imperfective aspect.
From the en.wikipedia.org
Auxiliary verbs mark constructions such as questions, negative polarity, the passive voice and progressive aspect.
From the en.wikipedia.org
Art itself, if it is really great, has a progressive aspect that is needed by a society, even if it seems absolutely useless in strictly practical terms.
From the guardian.co.uk
The progressive aspect of the present is used when the speech refers to present situations that are happening in a continuous, uninterrupted way.
From the en.wikipedia.org
The progressive aspect of the past is used when the speech refers to past situations that were happening in a continuous and uninterrupted way.
From the en.wikipedia.org
The progressive aspect expresses the dynamic quality of actions that are in progress while the continuous aspect expresses the state of the subject that is continuing the action.
From the en.wikipedia.org
In the example, the progressive aspect expresses the fact that the subject is actively putting on clothes rather than merely wearing them as in the continuous aspect.