加粗并带下划线的是词尾。◆标出不合规则的形式。
直陈式
Present simple现在时
| I | knock |
|---|
| you | knock |
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| he/she/it | knocks |
|---|
| we | knock |
|---|
| you | knock |
|---|
| they | knock |
|---|
详见： 一般现在时（Simple Present）
Past simple完成的过去
| I | knocked |
|---|
| you | knocked |
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| he/she/it | knocked |
|---|
| we | knocked |
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| you | knocked |
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| they | knocked |
|---|
详见： 一般过去时（Simple Past）
Present perfect完成时
| I | have knocked |
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| you | have knocked |
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| he/she/it | has knocked |
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| we | have knocked |
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| you | have knocked |
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| they | have knocked |
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详见： 现在完成时（Present Perfect）
Past perfect过去完成时
| I | had knocked |
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| you | had knocked |
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| he/she/it | had knocked |
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| we | had knocked |
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| you | had knocked |
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| they | had knocked |
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详见： 过去完成时（Past Perfect）
Future (will)将来时
| I | will knock |
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| you | will knock |
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| he/she/it | will knock |
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| we | will knock |
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| you | will knock |
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| they | will knock |
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详见： will
Future perfect将来完成时
| I | will have knocked |
|---|
| you | will have knocked |
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| he/she/it | will have knocked |
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| we | will have knocked |
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| you | will have knocked |
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| they | will have knocked |
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条件式
Conditional (would)条件式
| I | would knock |
|---|
| you | would knock |
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| he/she/it | would knock |
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| we | would knock |
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| you | would knock |
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| they | would knock |
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详见： 第二类条件句（if 从句第 2 类）
Conditional perfect过去条件式
| I | would have knocked |
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| you | would have knocked |
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| he/she/it | would have knocked |
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| we | would have knocked |
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| you | would have knocked |
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| they | would have knocked |
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进行时
Present progressive现在进行时
| I | am knocking |
|---|
| you | are knocking |
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| he/she/it | is knocking |
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| we | are knocking |
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| you | are knocking |
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| they | are knocking |
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详见： 现在进行时（Present Progressive）
Past progressive过去进行时
| I | was knocking |
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| you | were knocking |
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| he/she/it | was knocking |
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| we | were knocking |
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| you | were knocking |
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| they | were knocking |
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详见： 过去进行时（Past Progressive）
Present perfect progressive现在完成进行时
| I | have been knocking |
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| you | have been knocking |
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| he/she/it | has been knocking |
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| we | have been knocking |
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| you | have been knocking |
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| they | have been knocking |
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详见： 现在完成进行时（Present Perfect Progressive）
Past perfect progressive过去完成进行时
| I | had been knocking |
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| you | had been knocking |
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| he/she/it | had been knocking |
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| we | had been knocking |
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| you | had been knocking |
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| they | had been knocking |
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Future progressive将来进行时
| I | will be knocking |
|---|
| you | will be knocking |
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| he/she/it | will be knocking |
|---|
| we | will be knocking |
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| you | will be knocking |
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| they | will be knocking |
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非限定形式
Infinitive and participles不定式、动名词、分词
| infinitive | knock |
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| to-infinitive | to knock |
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| -ing form | knocking |
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| past participle | knocked |
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详见： 不规则动词 · 动词后接 -ing
课程中的例句
每个句子都来自本课程的词表或语法专题。动词形式已标出，下面写着它是哪个时态、哪个人称。
A big wave knocked him over.一个大浪把他打翻了。
knocked — Past simple · I; Past simple · you
She knocked twice and waited.她敲了两下门，然后等着。
knocked — Past simple · I; Past simple · you
They knocked down the old shed.他们把旧棚子拆了。
knocked — Past simple · I; Past simple · you
快速练习
5个填空，先来自上面的例句，再来自变位表。每个回答都会计入你的复习。
这些形式按语言规则算出——两遍，用两种互相独立的方法——并且和本课程里所有手写的形式核对过。例句都是本课程自己的句子。
