Present simple现在时
| I | know |
|---|---|
| you | know |
| he/she/it | knows |
| we | know |
| you | know |
| they | know |
know的动词变位
- 词义 知道，认识
- 级别 A1
- 变位类型 不规则
这个动词的特别之处
- 要记住的三个基本形式：know – knew – known。 → 不规则动词
- 状态动词：一般不用进行时，说 know，而不用 -ing 形式。 → 不用进行时的动词（状态动词）
加粗并带下划线的是词尾。◆标出不合规则的形式。
直陈式
Past simple完成的过去
| I | knew |
|---|---|
| you | knew |
| he/she/it | knew |
| we | knew |
| you | knew |
| they | knew |
Present perfect完成时
| I | have known |
|---|---|
| you | have known |
| he/she/it | has known |
| we | have known |
| you | have known |
| they | have known |
Past perfect过去完成时
| I | had known |
|---|---|
| you | had known |
| he/she/it | had known |
| we | had known |
| you | had known |
| they | had known |
Future (will)将来时
| I | will know |
|---|---|
| you | will know |
| he/she/it | will know |
| we | will know |
| you | will know |
| they | will know |
详见： will
Future perfect将来完成时
| I | will have known |
|---|---|
| you | will have known |
| he/she/it | will have known |
| we | will have known |
| you | will have known |
| they | will have known |
条件式
Conditional (would)条件式
| I | would know |
|---|---|
| you | would know |
| he/she/it | would know |
| we | would know |
| you | would know |
| they | would know |
Conditional perfect过去条件式
| I | would have known |
|---|---|
| you | would have known |
| he/she/it | would have known |
| we | would have known |
| you | would have known |
| they | would have known |
进行时
Present progressive现在进行时
| I | am knowing |
|---|---|
| you | are knowing |
| he/she/it | is knowing |
| we | are knowing |
| you | are knowing |
| they | are knowing |
Past progressive过去进行时
| I | was knowing |
|---|---|
| you | were knowing |
| he/she/it | was knowing |
| we | were knowing |
| you | were knowing |
| they | were knowing |
Present perfect progressive现在完成进行时
| I | have been knowing |
|---|---|
| you | have been knowing |
| he/she/it | has been knowing |
| we | have been knowing |
| you | have been knowing |
| they | have been knowing |
Past perfect progressive过去完成进行时
| I | had been knowing |
|---|---|
| you | had been knowing |
| he/she/it | had been knowing |
| we | had been knowing |
| you | had been knowing |
| they | had been knowing |
Future progressive将来进行时
| I | will be knowing |
|---|---|
| you | will be knowing |
| he/she/it | will be knowing |
| we | will be knowing |
| you | will be knowing |
| they | will be knowing |
命令式
Imperative肯定命令式
| you | know |
|---|---|
| we | let's know |
详见： 祈使句
非限定形式
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。
I really do not know.我真的不知道。
know — Present simple · I; Present simple · you
She knows the poem by heart.她能把这首诗背下来。
knows — Present simple · he/she/it
The date was impossible and everyone knew it.那个日期根本不可能，大家都知道。
knew — Past simple · I; Past simple · you
Her research is well known.她的研究很有名。
known — past participle · 可数还是不可数
I do not know the answer.我不知道答案。
know — Present simple · I; Present simple · you
I do not know where he is.我不知道他在哪儿。
know — Present simple · I; Present simple · you
常见陷阱
错误 I now the answer.
正确 I know the answer.
很多学习者看到 know、knee，就按拼音的习惯一个字母一个字母地拼读，把 k 也读了出来。其实这个 k 几百年前就不发音了：knee 就读 /niː/，know 和 no 读音完全相同。写的时候又会发生相反的事：因为听不到，就把 k 漏掉了。
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。
继续学习
同一变位类型的动词
相关语法专题
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。