present and future unreal conditionals和past unreal conditionals分别是哪两个语法,这两个用的时候有什有什么区别么?

可不可以说my past,my present and my future Important is the present and future!.想知道先 Cherish the present and look forward to the Cherish the present and look forward to the future 中文是什么! 英语翻译Towards sustainable and efficient use of fishery resources:present and future trends we have a sense of past and future,not just present 翻译 From past to present and then to the future,we must be very happy! the future joy makes the past and the present bearable 翻译? A ture friend is someone who accepts your past,support your present and encourages your future What is the relationship between present value and future value?用英语回答哦 talk about the past,present and future of wonders of the world “In the past,present and future,I will go from here? The stupid speak of the past ,the wise of the present ,and fools of the future. 英语翻译I get some knowledge about nature and science of the past,the present and even the future web-based learning:past,present and future是什么意思写论文的题目这是一篇论文的题目：Web-based learning:past,present and future.你知道可以冲哪方面入手吗？ 首字母填空We learn from the past ,e_____ the present and hope for success in the future Don't let the sadness of your past and the fear of your future ruin the happiness of your present. Don't let the sadness of your past and the fear of your future ruin the happiness of your present. Live for the moments,not for the memories.Live for your present and your future,not for the past.