donot與don’t的意思都是一樣的，don`t就是donot的縮寫，它們有個小小的區(qū)別，那就是，donot的語氣要比don’t的語氣更為強(qiáng)烈，有強(qiáng)調(diào)的作用。

do既可以做實意動詞又可以做助動詞

根據(jù)不同的用法，do可以化身為五種不同形態(tài)，分別是do，does，did，doing和done。

1. do用于一般現(xiàn)在時

例句:I often do my homework in the evening.

2. does用于第三人稱單數(shù)的一般現(xiàn)在時

例句:He does his lessons every day.

3. did用于一般過去時

例句:They did homework yesterday.

4. doing常用于現(xiàn)在進(jìn)行時或者非謂語動詞(暫時不提)

例句:He is doing his homework now.

5. done 常用于完成時，被動態(tài)或者非謂語動詞(暫時不提)

例句:

He has done his homework.

He had done his homework before he went out.

His homework is done.

作為助動詞，常用于疑問句和否定句。

1. 一般疑問句

例句:Do you like English?

2. 選擇疑問句

例句:Does he go to school by bus or by bike?

3. 特殊疑問句

例句:How do you go to school?

4. 反義疑問句

例句:You like English, don't you?