Correlative with 既...又/也
既...又/也 expresses 'both...and,' linking two co-existing qualities or actions in formal register.
Pattern
既 + A + 又/也 + B
Explanation
既...又 (or 既...也) is a correlative conjunction meaning 'both A and B' or 'not only A but also B.' It connects two parallel qualities, states, or actions that coexist in the same subject. The two elements should be grammatically parallel — both adjectives, both verbs, or both clauses.
This construction is more formal than 又...又 and is common in written evaluations, descriptions, and analytical writing. When more than two qualities are listed, the pattern can extend: 既A，又B，还C. The negative form 既不...也不 means 'neither...nor.'
Examples
这个方案既经济又实用。
Zhège fāng'àn jì jīngjì yòu shíyòng.
This plan is both economical and practical.
她既不同意也不反对。
Tā jì bù tóngyì yě bù fǎnduì.
She neither agrees nor objects.
这部电影既有深度，又有娱乐性。
Zhè bù diànyǐng jì yǒu shēndù, yòu yǒu yúlè xìng.
This movie has both depth and entertainment value.
Common Mistakes
他既高兴又难过又生气。
他既高兴，又难过，还有些生气。
When listing more than two items, use 既...又...还 rather than repeating 又.
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