durative

Of or pertaining to duration.

Long-lasting.

Of or pertaining to the aspect of a verb that expresses continuing action; continuative. Part of the imperfective aspect, as opposed to the perfective aspect, of verbs.

This aspect, or a verb in this aspect; a continuative.

In every section of this invaluable work new light is thrown on ancient problems - phrasal verbs (bring up, put off), phrasal-prepositional verbs (catch up on, come up with) [...] duratives, sentence adverbs, and so on.