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Grammar problem

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发表于 2016-2-13 02:57 PM |显示全部楼层
S1. John [was] eaten by lions

S2. I [have] eaten my dinner

this 2 example is correct sentence

i always confused with grammar,why does the sentense1 use paste tense,but sentense 2 dont?




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发表于 2016-2-13 03:34 PM |显示全部楼层
John was eaten by lions
Lions have eaten John
I have eaten my dinner
My dinner was eaten by me


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黄金长老

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发表于 2016-2-13 04:28 PM |显示全部楼层
S1. John [was] eaten by lions
       First sentence,in my humble opinion, it means the event happened in past. The sentence 'John      
       has been eaten by lions' indicates that it happened in past and still remains as a fact until now.

S2. I [have] eaten my dinner
      It means you mention that you have taken your meal at the point you spoke it out. Alternatively, 'I   
      had eaten my dinner when the bus arrived' emphasis that you have finished your dinner before the  
      arrival time of the bus.  


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白银长老

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发表于 2016-2-13 04:55 PM |显示全部楼层
S1 passive sentence
S2 active sentence


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发表于 2016-2-13 04:58 PM |显示全部楼层
thanks a lot


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白金长老

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发表于 2016-2-14 02:36 PM |显示全部楼层
first sentence is past tense+passive, so use was/were+verb(past tense)
second sentence is present perfect tense+active, so use have/has+verb(past participle)


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发表于 2017-3-9 07:02 PM |显示全部楼层
还有你的单数复数问题也很严重。


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