现在完成时是英语语法中的一种时态，用于描述过去发生的动作或事件与现在的关系。下面是20个现在完成时的例句：
- 我已经吃过晚饭了。 (I have already had dinner.)
- 他已经去过北京了。 (He has already been to Beijing.)
- 她已经完成作业了。 (She has already finished her homework.)
- 我们已经看过这部电影了。 (We have already watched this movie.)
- 他们已经学习英语很长时间了。 (They have been studying English for a long time.)
- 我已经忘记了他的电话号码。 (I have already forgotten his phone number.)
- 她已经买了一辆新车。 (She has already bought a new car.)
- 我们已经见过面了。 (We have already met.)
- 他已经收到了你的邮件。 (He has already received your email.)
- 我们已经度过了一个难忘的假期。 (We have already had a memorable vacation.)
- 她已经结婚了。 (She has already gotten married.)
- 我已经打扫完了房间。 (I have already cleaned the room.)
- 他已经花了很多钱买这个房子。 (He has already spent a lot of money on this house.)
- 我们已经决定好了下一步该怎么做。 (We have already decided what to do next.)
- 她已经找到了一份好工作。 (She has already found a good job.)
- 我已经搬到了新家。 (I have already moved to a new house.)
- 他已经做了很多准备工作。 (He has already done a lot of preparation.)
- 我们已经尝试过很多不同的方法。 (We have already tried many different methods.)
- 她已经学会了如何开车。 (She has already learned how to drive.)
- 我已经读完了这本书。 (I have already finished reading this book.)
以上例句希望可以帮助大家更好地掌握现在完成时的用法和语境。
