1
be + verb-ing
进行时态用于描述正在发生的动作。
She is running.
她正在跑步。
进行时态
先理解核心含义，再看它在真实句子里的用法。
进行时态
a verb form that expresses an action or state continuing at a particular time
She is running.
她正在跑步。
常由“be + 动词的现在分词”构成，表示动作正在进行或持续。
表示正在进行的动作的动词时态；在英语中,任何由现在分词构成的时态,即现在进行时(“我正在做梦”)、过去进行时(“我在做梦”)、现在完成进行时(“我一直在做梦”)、过去完成进行时(“我曾在做梦”)、将来进行时(“我将正在做梦”)或将来完成进行时(“我将一直在做梦”)。
A verb tense expressing ongoing action; in English, any of the tenses formed with the present participle, namely present continuous ("I am dreaming"), past continuous ("I was dreaming"), present perfect continuous ("I have been dreaming"), past perfect continuous ("I had been dreaming"), future continuous ("I will be dreaming") or future perfect continuous ("I will have been dreaming").
In English, we use the continuous tense to talk about actions happening right now.
在英语中，我们用进行时态来谈论此刻正在发生的动作。
The teacher explained the difference between the simple past and the continuous tense.
老师解释了简单过去时和进行时态之间的区别。
You will need the continuous tense when you describe a scene in a story.
当你描述故事中的一个场景时，你会用到进行时态。
进行时态用于描述正在发生的动作。
She is running.
她正在跑步。
过去进行时态用于描述过去某个时间正在进行的动作。
They were eating dinner.
他们正在吃晚饭。
Not this
I am understanding the lesson now.
Use this
I understand the lesson now.
“understand”是静态动词，通常不用于进行时态，表示当前状态应用一般现在时。
Not this
She is going to the gym every day.
Use this
She goes to the gym every day.
表示习惯性动作应用一般现在时，现在进行时强调正在进行的动作，不能用于习惯。
Choose the next layer that will help you use continuous tense with more confidence.
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Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
Use continuous tense naturally, then get feedback on meaning, tone, grammar, and phrasing.
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进行时态
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.