由used构成的词组常让大家觉得特别难以记清楚,容易弄混淆导致用错地方。下面就这几个词讲讲如何区分它们的意思以及它们的使用方法,供大家学习参考。1.used to过去常常;曾经(这是唯一一个没有be动词的词组,它与被动语态无关,后接动词原形。)例如: The phrases made up by often make people feel particularly hard to remember, easy to confuse the use of the wrong place. The following few words on how to tell the difference between their meaning and their use, for your reference. 1.used to used to be used to; used to be (this is the only phrase without be verb that has nothing to do with the passive voice, followed by the verb prototype.) For example: