[shun]

Originally Posted by riverkid

Simple past tense could be used but using the present perfect shows a past action that has importance now, a past action that has current relevance.

My reply: I have talked about this disappointing chant here very often.

Even a young would-be teacher can notice that everything you say now is of importance. But you are not aware of it.

Can I listen only to you Present Perfect structures because they are important and have current relevance, but not those in Simple Past because they are not important and have no current relevance? It doesn't make any sense. Everything you said, in whatever tense, has importance now.

A big storm yesterday, being expressed in Simple Past, had no current relevance, but a small storm in the past, expressed in Present Perfect, has current relevance. Is it your logic?

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Most important, as you can utter "current relevance", can you define "the present time" at all?

Or do your logic and explanation depend on what you don't know how to define?