present perfect

常见例句

When you ask about something that started in the past but continues to the present time, you use the Present Perfect tense, e.g.
儅你談論從過去開始一直持續到現在的某件事時，用現在完成法時態。
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When you ask about something that started in the past but continues to the present time, you use the Present Perfect tense, e.g.: I’ve been there for 5 years / I’ve been there for 5 years.
儅你談論在過去開始但是一直持續到現在的某事時，用現在完成時態，例如：I’ve been there for 5 years/我在那裡已經5年了。
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If we say when a past event happened (for example, by using time-adverbs), we do not usually use the present perfect.
說過去發生的事件（例如：用過去時間狀語），我們通常不用現在完成時。
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