Ihave eaten是动词eat的现在完成时；Ihad eaten是过去完成时；Iwill have eaten是将来完成时。
'I have eaten' is the present perfect tense of the verb 'to eat', 'I had eaten' is the past perfect and 'I will have eaten' is the future perfect.
有些人相信过去发生或现在发生的一切将来都会重演。
Some people believe whatever has happened before or is happening now will repeat itself in the future.
新的一年即将来临，现在是我回顾过去的日子并制定计划、不断进步的时候了。
The new year is around the corner, so it is time for me to look back on the past days and make plans to improve myself.
圆桌一直是中国人情感的象征。过去是，现在是，将来也永远会是。
The round table has been a symbol of the Chinese feelings. It was, it is and will always be.
对于日期字段，您还可以指定日期应当是过去还是将来，正如上面使用的。
For date fields, you can also specify whether the date should be past or future as used above.
这包括许多不同的个体拥有在日常生活中很少用得上的深奥技能——比如能够立即算出任何一个过去或将来的日期是星期几。
That includes many individuals with esoteric skills that are of little use in everyday life - like being able to instantly reckon the day of the week for any past or future date.
如果你生活在过去的痛苦之中或者对将来的恐惧之中，你将会感觉焦虑不安。
When you live in the pain of the past or the fear of the future you feel anxious and stressed.
现在，将来，过去，这三者总是连在一起也总是伴随着我们的。
The present, the future and the past are always tied together and are always with us.
温斯顿.丘吉尔曾说“对于现在他更喜欢过去而对于将来他却更喜欢现在”。
WINSTON CHURCHILL once said that he “preferred the past to the present and the present to the future”.
无论是过去还是将来，拟或是现在，新闻博物馆不再是报道那些毫无偏见观点的地方了。
Entertaining though it is, the Newseum is not the place to go for unbiased reporting on the past, present and future of the press.
而另一方面，说中文的人不必用这种方式道出某种行为的确切时间，因为同样的动词形式可以用来表达过去、现在或将来时态。
Chinese, on the other hand, does not oblige its speakers to specify the exact time of the action in this way, because the same verb form can be used for past, present or future actions.
不要为过去或将来倾注精力；你为你爱的人存在于当下。
You are not preoccupied with the past or the future; you are there for your beloved.
对于像斯特劳斯这样依靠信用卡生活的人来说他们急需工作却根本找不到，美国梦是过去式而不是将来式。
For Strauss, living on credit, desperate to work, but with no job in sight, that dream looks a thing of the past, not the future.
其他四张热卖大碟分别是：墙外、坏小子、危险和历史：过去现在和将来。
Four of his other albums Off the Wall, Bad, Dangerous and History: Past, Present and Future.
这些新工具可以帮助我们，将人类的同情心发挥最大的作用，这就是为什么将来同过去是不一样的。
They are new – they can help us make the most of our caring – and that's why the future can be different from the past.
过去和将来的风格是不必要的负担。
开始时，忽视想要计划将来沉思过去的思想是很困难的，但是随着时间的推移，你将看穿它的荒谬。
Initially it will be really hard to ignore the mind that wants to plan for the future and Muse about the past, but with time you will see through its insanity.
归纳推理对于我们来说总是非常奏效，它在过去奏效，在将来也应该奏效，对吧？
Inductive reasoning has always worked very well for us, its worked in past; it should work in the future, shouldn't it?
过去不再回来，将来无从把握，但我们可以享受现在这一刻的美好。
The past is gone, the future is undefined, but this very minute is yours to enjoy.
因为我们从过去发生的事情推断，将来会发生的事，我觉得你们有点晕了。
Because we extrapolate from what has happened in the past to what will happen in the future. I have lost you I can see.
无论过去，现在，还是将来，中方维护半岛和东北亚地区和平稳定的立场是坚定不移的。
No matter in past, present or future, China's position to safeguard peace and stability on the Peninsula and in Northeast Asia will remain resolute.
你的直觉对形势和特定个人的理解如何？过去、现在、还有将来？
What do your instincts tell you about the situation and about the person… both in the past, present, and future?
因此，福尔·韦尔先生之死便引发了人们对将来的猜测和过去的反思。
So Mr Falwell's death provokes questions about the future as well as reflections on the past.
最大的问题之一是哲学,是我们怎样证实，我们能证实这个论点，即将来就像过去。
One of the biggest problem in philosophy is that how do we justify, can we justify this assumption that the future will be like the past.
北约的过去为关于其将来的辩论提供了充分的案例。
NATO’s record there provides ammunition for both sides of the debate about its future.
海地在过去遭受过地震的侵袭，将来也会(所有加勒比群岛都是如此)。
Haiti has suffered large earthquakes in the past, and will do so again (same as all the islands of the Caribbean).
学生：,教授：是的，每次你尝试证实信仰,将来就像过去一样,你会发现自己循环证明了。
Student: Inaudible Prof: yes, exactly, every time you try and justify the belief that the future will be just like the past you will find yourself arguing in a circle.
当我们慢慢长大，开始担心将来，回顾过去，而“现在”则离我们而去。
As we get older, we start thinking about the future and the past, and the present seems to slip away from us.
当我们慢慢长大，开始担心将来，回顾过去，而“现在”则离我们而去。
As we get older, we start thinking about the future and the past, and the present seems to slip away from us.
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