| 单词 | present perfect |
| 释义 | present perfectadjective [ADJECTIVE noun] In grammar, the present perfect tenses of a verb are the ones used to talk about things which happened before the time you are speaking or writing but are relevant to the present situation, or things that began in the past and are still happening. The simple present perfect tense uses 'have' or 'has' and the past participle of the verb, as in 'They have decided what to do'. English Easy Learning GrammarThe present perfect continuous tenseTypical forms of this tense are as shown in: I have been waiting. I’ve been waiting. She has been waiting. She’s been waiting. Have I been snoring? Has ... Read more English Easy Learning GrammarThe present perfect tenseTypical forms of this tense are as shown in: I have finished. He has found them. They’ve finished. They’ve found her. Listen! I’ve heard some great news; ... Read more English Easy Learning GrammarAuxiliary verbsAn auxiliary verb is a verb that is used together with a main verb to show time andcontinuity. Be and have are the primary auxiliaries. A primary auxiliary ... Read more present perfect in British Englishadjective, noun grammar another term for perfect (sense 8), perfect (sense 11) present perfect in American English1. a tense indicating an action as completed or a state as having ended at the time of speaking but not at any definite time in the past 2. a verb form in this tense (Ex.: has gone) |
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