大部分的语法都是一般过去时和现在完成时。
乍看起来，在现在完成时的用法中，似乎跟在一般过去时中一样，都没有“涉及现在”的因素。
At first glance it looks as if there is no element of "present involvement" in this use of the present perfect any more than in the simple past.
英语状态被动语态句型结构可以是一般现在时、一般过去时、现在完成时或者过去完成时。
The English stative passive voice sentences can be the simple present, the simple past, the present perfect or the part perfect.
若按普通英语的动词时态规则，就得用一般过去时或现在完成时。
In this case, the past or present perfect tense should be used according to the grammatical rules of common English.
英文摘要时态的运用也以简练为佳，常用一般现在时、一般过去时，少用现在完成时、过去完成时，进行时态和其他复合时态基本不用。
The use of tenses in English also is better to concise, commonly used present tense, the past tense, use less when completed, the past is finished now, tense and other composite tense basic need not.
一般过去时还是现在完成时？
一般过去时还是现在完成时？
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