The aspect of a verbA part of speech that expresses an action or a state. E.g.: John seldom plays tennis. does not mark when an actionA general term expressing that somebody or something does something takes place in timeA concept which is related to our perception of reality; that part of existence which is measured in seconds, minutes, hours, days, weeks, etc., but shows the relationship between the action and the passage of time, seen from the speaker's point of view.

There are two aspects in English: the continuousThe aspect expressing duration, formed with be + verb-ing. E.g.: What are you doing? (also called progressAn action is in progress when it is happening. E.g.: When I arrived he was surfing. ("he was surfing")ive) aspect expresses durationA concept, related to the continuous aspect, expressing that an action is in progress. E.g.: What are you doing? ; the perfectThe aspect expressing completion. E.g.: He’s finished university. aspect expresses completionA concept, related to the perfect aspect, expressing that an action has finished. E.g.: He’s finished university..

• The continuous aspect
• The perfect aspect
• The perfect continuous "aspect"
• State verbs and action verbs / Verbs not used in the continuous form

The difference between times and tenses
Time, tense and aspect The continuous aspect