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- If I had known it, I should have told it to you. 我要是知道的话，我早告诉你了。
- If I had known it,I should have told it to you. 我要是知道的话，我早告诉你了。
- He couldn't have known it was for him that I had set it. 他哪里会知道我正是为他才这样摆设的。
- If I had known it was going to rain, I would have closed the window. 如果当时我知道要下雨,我早就把窗关了。
- If I had known it all at age 22, I probably would have been a little cocky. 假如我在22岁的时候就能知道这些了，我可能会变得有些骄傲自大。
- If I had known it would come to this, I would have acted differently. 早知今日， 何必当初?
- I do know it is here that I have known my first untroubled sleep in many years. 正是这种力量，令我多年来首次能安然入眠。
- I don't know because I have never used it before. 我不知道。因为，我以前从来没有用过摩丝。
- It's news to me(= I haven't heard it before). 这事我第一次听说。
- I have never heard of it before. 我以前从来没有听说过。
- I have known something of him before. 我以前对他有所了解。
- I have known all along that they are going to win. 我始终认为他们会取胜的。
- Do I have to do it before the landing? 我必须在飞机着陆之前填好吗?
- I have known hunger and hardships. 我经历过饥饿和困苦。
- If I have known about that, I would not mix it up. 我要是知道了,也不会搞混了。
- I haven't said a word about it before it's all bottoned up. 关于此事我一句话都没说就一切安排就绪了。
- How does the medicine act? I have never heard of it before? 这种药我以前没听说过,它是怎样达到治疗目的的?
- I had known about him long before we met. 在我们没有碰面之前,我老早就知道他了。
- I had to right it before I could feel safe. 我得把它正过来才能感到安全。
- I had known about that before you told me. 你告诉我之前,我就知道此事了。
