不

不

bù

adverb

Common errors

1. Incorrect position

1.1 不 comes before the verb or adjective it negates, but beginners sometimes place it incorrectly, especially after the verb or before the subject:

1.2 Unless there is a special semantic reason, 不 is placed in front of the modal and not the main verb. Learners might miss the modal verb and place 不 in front of the main verb:

1.3 In most sentences 不 is placed after other adverbs, however learners might place the adverb after 不:

2. Confusing 不 with other negation adverbs

Chinese uses different negation adverbs for different contexts. While 不 is the most common negation adverb, it cannot always be used and this might confuse learners, especially beginners and lead to confusing 不 with other negation adverbs.

2.1 不 is generally used to negate actions and states in the present. An exception being the verb 有. Learners might use 不:

2.2 Learners might use 不 to negate completed or past actions, instead of 没 (有):

E.g. to negate the sentence 昨天我去公园了 learners might mistakenly use 不:

2.3 不 is a general negation, not suitable in imperatives. Learners might mistakenly use 不 instead of 别:

3. Overusing 不

3.1 Overusing 不 alone. While it can occur alone at the beginning of a denial, it sounds polite to be followed by either the negated verb or adjective or a contrastive statement.

3.2 In grammatically correct sentences, some uses of 不 may be overly direct and for some sound rude:

我不要 or 不要吃 are very direct answers and for some may come across as impolite. Less direct statements would be more common, e.g.:

Learning tip

Teach the students some common ways to moderate blunt answers, like:

不太… To reduce intensity                 
不用(了) To decline offers                
下次吧 or 现在不/現在不… To postpone or delay a proposed action “next time!”

Have the students make short roleplays

L1 inference error

Applying English negation logic, learners might overuse 不 as a standalone for ‘no’.