How to decide which part is a subject and which a predicate?

Question

I just read the following sentence: > 我这两天住的很愉快。 The meaning is pretty clear. Since this is a letter from a guest to a host in AirBnB, the meaning should be something like "It was so good to live here for 2 days.". However, I'm not sure how I can decide which part is a subject and which part is a predicate. If you understand it from the meaning, 我这两天住的 is a subject and 很愉快 is a predicate. But it is only after the meaning that I can understand its grammartical structure, and I wouldn't understand it without context. I also don't understand why 的 is used here, which seems to not [in a list of use cases of 的](https://resources.allsetlearning.com/chinese/grammar/%E7%9A%84). But this is not the only example of when I don't decide the grammartical structure, specifically where a subject is and where a predicate is. How can I tell it apart better when I don't have enough context?

Answer 1

The concept you need to understand this is the "topic-comment" structure so common in Chinese. The subject is 我。The topic is the rental unit, the place being discussed. It's harder to notice that this is a "topic-comment" structure because the topic is implied/already understood.

The apartment (topic) , I stayed happily these past two days (topic).

The 的 should be 得： 住得很愉快。

Subject predicate doesn't get you anywhere in understanding the grammar of this sentence.

Answer 2

「補語」指向「謂語」。

住的：謂語 (V. or Adj.)

很愉快：補語 (RE - Resultative Ending)

這二天：可移動性副詞 (MA - Movable Adverb)，例如：當然、大概、剛剛、後來、從前、上午...

另一個參考句子：他這二天網球打得很好。