英语翻译动词为什么用have而不用had?如果把这个句子改为:Nations with the nuclear weapons have the power to destroy the world.这二个句子意识相同吗？

英语翻译不是与过去事实相反么?为什么不用had gone而用have gone? 英语翻译动词为什么用have而不用had?如果把这个句子改为:Nations with the nuclear weapons have the power to destroy the world.这二个句子意识相同吗？ 英语翻译had为什么不用will have? I’m glad you’ve come back from Beijing.Please tell me how long you ________there为什么用stayed 而不用have stayed had stayed 或have being stayedstay是延续性动词把。 为什么have不用过去时,而后面的动词用过去时Recent measures have not eliminated discrimination in employment he is going to stay at home ( )about a week为什么不用on而用for?请讲明原因,let s ( ) a drink A had B have C having Dto have为什么不用to have而用have? 讲解语法知识.Famished peasants had nowhere to turn.Famished peasants had nowhere to turn.我一直搞不懂have,has和had的知识 谁给我讲讲.这里为什么用had而不用has/have I have just bought a new bike 这里为什么用bought不是说现在完成时不用瞬间动词。而应该用延续性动词吗这里为什么用bought would you like to go to the seaside for...答：well ,suppose that i had a ...为什么不用have 而用had 在英语时态中,为什么完成时中只能用have/has/had而不能用be 动词? 英语翻译为什么不用early，而用earlier 英语翻译为什么要用Can you help me,而不用Can you help I Can明明是情态动词啊 He did not have a good reputation in his home town.这里为什么用have而不用had?过去式的话应该是要用had啊.那had应该在什么情况下使用? Have you had lunch time?为什么用had不用原型呢? 这句话中有动词吗?when are you going to have a holiday?这里为什么用are?如果句子中有动词就不用are,用do 那这句里有吗 我想知道为什么用 are 而不用do呢 She might have gone.她或许已经走了.　句中为什么用have不用had? You have saved my life;I shall never forget it.为什么用have不用had? I feei as if I already____inside me all the medicine that could cure the illness.为什么用had had 而不用have had 要说的详细些,我的英语学的不是太好啦!