您要查找的是不是：
- perfect progressive passive 完成进行时被动式
- The present perfect progressive tense 现在完成进行式
- future preterite perfect progressive 过去将来完成进行时
- future perfect progressive tense 将来完成进行时
- Simple past perfect and past perfect progressive tenses 一般过去完成时和过去完成进行时
- Simple present perfect and present perfect progressive tenses 一般现在完成时和现在完成进行时
- T here are cases, however, where these two forms are not interchangeable in that the present perfective progressive has also the meanings of continuousness, temporariness and incompleteness . 但是，由于现在完成进行体还带有进行体的持续性、暂时性和未完成性的含义，有时就不可以与现在完成体互换使用。比较：
- Nothing in the world is flawless and perfect. 世上没有十全十美的东西。
- Could this verb be used in progressive form? 这个动词可以用进行式吗？
- The weather during our holiday was perfect. 我们度假时的天气好极了。
- The project is far from perfect. 这项企划很不完美。
- What's the secret of baking perfect bread? 烤出好面包的秘诀是什么？
- She is the most progressive writer of those times. 她是那个时代最进步的作家。
- He didn't have perfect attendance this year. 他今年有缺勤。
- I have perfect trust in my friend. 我完全信赖我的朋友。
- She is the most progressive writer of the time. 她是那个时代最进步的作家。
- They live in perfect accord with each other. 他们生活在一起十分融洽。
- He has perfect poise and never seems embarrassed. 他的神智安宁，似乎从没困惑过。
- They are more old hat than progressive. 他们保守,而不进步。
- On that occasion he looked a perfect fool. 在这个场合，他看起来就像一个大傻瓜。
