The adverb 都
If the number of people or objects is greater than one, you can use the adverb 都, which means “both”, “all", or “together”.
The adverb 都 
summarizes what has been said, summarizes the objects or facts mentioned before it, and conveys the meaning of "without exception".
都 appears after the subject and before the verb.
summarizes what has been said, summarizes the objects or facts mentioned before it, and conveys the meaning of "without exception".
都 appears after the subject and before the verb.Scheme
subject
都
predicate
Examples
他们都很忙
All of them are busy
tāmen dōu hěn máng
书都是我的
All books belong to me
shū dōu shì wǒ de
If there are two people or things in a sentence, 都 is translated as "both".
Examples
她和她哥哥都喜欢唱歌
Both she and her brother love to sing
tā hé tā gēge dōu xǐhuan chàng gē
这辆车和那辆车都是红色的
Both of these cars are red
zhè liàng chē hé nà liàng chē dōu shì hóngsè de
In a negative sentence, 不 appears before or after 都, depending on the meaning.
不都 means "not all":
appears before or after 都, depending on the meaning.
不都 means "not all":Examples
我们不都学英语
Not all of us learn English
wǒmen bù dōu xué yīngyǔ
都不 means "none", "no one":
Examples
我们都不学英语
None of us learn English
wǒmen dōu bù xué yīngyǔ
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