Aspectual

Common aspectual distinctions The most fundamental aspectual distinction, represented in many languages, is between perfective aspect and imperfective aspect.

Certain aspectual distinctions express a relation in time between the event and the time of reference.

Classical Irish had a three-way aspectual contrast of simple–perfective–imperfective in the past and present tenses.

How (in-)sensitive is tense to aspectual information?

Korean verbs have a variety of affixed forms which can be described as representing present, past and future tenses, although they can alternatively be considered to be aspectual.

No aspectual distinctions are required by the grammar, but derivational expressions of Aktionsart are common.

Some of the traditional "tenses" express time reference together with aspectual information.

These two aspectual forms are also referred to as BE +ING See, for example, citation and HAVE +EN, See, for example, citation respectively, which avoids what may be unfamiliar terminology.