Common errors
1. Incorrect position
1.1 When 別 co-occurs with a subject, learners might place 別 before the subject:
*别你出去!
你别出去!
*別你出去!
你別出去!
1.2 When 別 co-occurs with other adverbs, learners might place 別 in a wrong position:
*再别问我。
别再问我。
*再別問我。
別再問我
2. Confusing 別 with other negation adverbs
Learners might confuse 別 with other negation adverbs particularly 不. 別 is a negative adverb for imperatives, while 不 is a general negation, not suitable in imperatives.
*不吃太多!
别吃太多!
*不吃太多!
別吃太多!
*请不开玩笑。
请别开玩笑。
*請不開玩笑。
請別開玩笑。!
3. Using a degree adverb in sentences with an adjective predicate
In sentences with an adjective predicate, learners might use a degree adverb, such as 很 or 非常, before the adjective. However, Degree adverbs are not compatible with imperatives using 别.
*别很生气。
别生气。
*別很生氣。
別生氣。
4. Using 别 as a general negation
4.1 Learners might misinterpret 别 as a general negation. 别 is used for prohibition, not habitual or factual negation, here you use 不.
*我别吃肉。
我不吃肉。
*我別吃肉。
我不吃肉。
4.2 Learners might mistakenly use 别 when expressing refusal.
*我别去。
我不去。or 我不想去。
*我別去。
我不去。 or 我不想去。