Well,
Jose and
Andy, I had a look at the site Andy suggested, and while it seems learned, and probably has much to recommend it, I'll also have to be critical of it for it's inconsistencies (and wonder if those don't cast suspicion on the veracity of some of the ideas expressed). For example the site says, near the beginning:
Aspect refers to the internal temporal constituency of an event, or the manner in which a verb's action is distributed through the time-space continuum.
Sounds great! But then several paragraphs down it says:
Unlike most aspects, the perfect does not tell us anything about the internal temporal constituency of a situation.
One has to wonder, then about the correctness of the first statement. Does it or doesn't it? If it sometimes does and sometimes doesn't, then why cite it as a definition of aspect?
Jose, here is my understanding.
Simple does not refer to aspect, but rather to
tense. The others are aspects all right. The way I understand it, English has two
tenses: Present Simple and Past Simple. They are marked by their use solo...that is, no auxiliaries appear with them in the verb phrase. All other verb forms, I believe, are aspects, and are marked by the appearance of auxiliaries in the verb phrase. Aspects do express, if I understand them correctly, the
temporal elements of events or situations alluded to in verbs. What is important to realize is that
tenses do not.
These are not easy concepts to be tossed off in a quick post at Dave's ESL Cafe, and then dismissed as "having been covered". It takes weeks, or months, sometimes even years of study and reflection before one can feel comfortable with them. Mostly, I believe, this is because of all the "crap" you hear and read in textbooks, in classrooms, and in cyberspace. What is apparent is that a lot of people don't know much about it. It is confusing, and you must try to be clear in your own mind, which is not easy under the circumstances.
Larry Latham