Here are three grammar points for the adverb 又 Yòu
1. when 又 means ‘both… and…
Sentence Structure: 又+ adj +又 + adj
Yòu dà yòu gān jìng
又 大 又 干 净 big and clean
yòu gāo yòu shuài
又 高 又 帅 tall and handsome
yòu shòu yòu xiǎo
又 瘦 又 小 thin and little
Sentence Structure: 又 + verb + 又 + verb
Yòu pǎo yòu tiào
又 跑 又 跳 running and jumping
yòu chī yòu hē
又 吃 又 喝 eating and drinking
yòu kū yòu nào
又 哭 又 闹 crying and being annoying, making noises
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2. when 又 means ‘again’
Sentence structure: subj. 又 verb 了
tā yòu chí dào le.
他 又 迟 到 了。 He is late again.
Xióng xiān shēng yòu bèi piàn le.
熊 先 生 又 被 骗 了。Mr Bear is being cheated again.
Ā gān yòu shī zōng le.
阿 甘 又 失 踪 了。 A gan disappeared again
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3. 又 is used to emphasise negation
又+不/没+adj/verb
Wǒ yòu méi zài shuō nǐ, nǐ zài jī dòng shěn me.
我又没在说你,你在激动什么。
I wasn’t even talking about you, why you getting so agitated.
Wǒ yòu méi zuò cuò, gàn ma yào shuō duì bu qǐ
我又没做错,干嘛要说对不起。
I didn’t even do anything wrong, why should I say sorry.
wǒ yòu bù dǒng shù xué, nǐ gàn ma yào wǒ bāng nǐ
我又不懂数学,你干嘛要我帮你。
I don’t know anything about maths, why you want me to help you.
It looks good to learn Chinese this way.