三人行，必有我师(焉)

语法
Multiple verbs/actions in a row. This is more like the negative space of grammar, no prepositions or conjugations needed...
https://resources.allsetlearning.com/chinese/grammar/Actions_in_a_row

词汇
还, to return something (pinyin in tags). Same character as 还, still, but pronounced differently.
https://mandarinbean.com/new-hsk-1-word-list/

Guardian:
Goes without saying: 这条命是我还你的, this is the life I'm returning to you.
哎哟死猫啊，还知道回家睡觉啊。damn cat, so you still know how to get home to sleep.
怎么买回来这么些吃的呀? why did you get so much food to bring back?

Me:
他还没还去年向我借的书。
我一定要去超市买米饭，鸡肉，柠檬，水果什么的。