Define present perfect. present perfect synonyms, present perfect pronunciation, present perfect translation, English dictionary definition of present perfect. The present perfect tense is formed by using the present tense of the auxiliary verb “ have
Complete the sentences with the correct form of the present perfect tense.I never such a beautiful city before.(visit) 相关知识点: 试题来源: 解析 have,visited 【解析】现在完成时的构成:have/has+过去分词...
◆ When we talk about situations or actions that went on over a past period of time but finished at a particular point in time before now, we don’t use the Present Perfect Continuous.◆ 表示在过去的一段时间内持续进行的情况或活动，但在现在之前的某个特定时间点已经完成，不使用现在完成进行时...
The present perfect tense现在完成时We use the present perfect tense to talk about things that happened我们使用现在完成时谈论发生在过去但在in the past but have a connetion to the present in some way.某种意义上与现在有联系的事情。在过去教材图片原文教材图片译文I've seen almost all of the ...
Related to present: present perfect tense, present progressivepre·sent (prē-zent'), 1. To precede or appear first at the os uteri, said of the part of the fetus first felt during examination. 2. To appear for examination or treatment, said of a patient. [L. praesens (-sent-)...
have/has+done(动词的过去分词)否定句have/hasnot+done 一般疑问句 have/has提到句首 动词如何变过去分词：规则动词的过去分词的构成规则与规则动词的过去式的构成规则相同。四点变化规则：(1)一般动词，在词尾直接加“-ed”。work---worked---worked,visit---visited---visited(2)以不发音的“e”结尾的动词...
Mr Wu asks the students to complete the sentencesbelow using the present perfect tense. Help themcomplete the sentences.1 They(finish) their homework already.2 John(visit)China.3 Mr Li( repair)over ten bicyclessince Monday.4 We(not see) each other for years.5My parents(not come)back yet...
Related to present: present perfect tense, present progressivepres·ent 1 (prĕz′ənt) n. 1. A moment or period in time perceptible as intermediate between past and future; now. 2. Grammar a. The present tense. b. A verb form in the present tense. 3. presents Law The document ...
【题目】Present Perfect (III)Youheboon (have gone have been) in New Yor fo longtime(has improved/improved)a lot(come/came) here a few years ago.(simce/for)I(Since/For)it(have started/started).(helped has helped) hundreds of people return to work and ive anormallf.FunctionsOh, you ...