I came across this simple sentence:

He will be back soon. 他很快就会回来的。

I understand that the 就 is expressing earliness, but what is the 的 doing here? In the textbook 新的中国 it doesn't say 的 is part of the 就 construction, or on the allgrammar wiki here https://resources.allsetlearning.com/chinese/grammar/Expressing_earliness_with_%22jiu%22

Is 的 turning the 会回来 into a sort of adjective? Since 会 is an adverb I expected it to be followed only be the verb 回 with the directional complement 来 without the 的. Any help would be appreciated.

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    search site for previous discussions of this question, grammar topic 是。。。的 sentences,是 or 的 can be omitted, omission of 是 happens generally with verb 会,
    – user6065
    Mar 26, 2017 at 17:47
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    @user6065 Ah it seems it's this one then resources.allsetlearning.com/chinese/grammar/… I was only familiar with the past tense 是。。。的 thanks for your help. Mar 26, 2017 at 17:58

2 Answers 2


As a native Chinese speaker, I seldom hear people say"他很快就会回来。" Because without the word "的" it sounds weird and unnatural. There is no meaning of “的” in the sentence. I think “的" use in the ending of this sentence is just make the sentence better.

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    這要看說話的節奏快慢,平時會加“的”,但在趕時間的場合就會盡量縮短,這時候就不會加“的”。很多是用來調節語速和節奏感,達到節省力氣的目的,為的就是不要把某個字說得太長,把這個音節長的字替換成2個字,同時每個字的發音時間縮減為三分之二左右來減慢節奏。 Mar 30, 2017 at 5:26

The "的" here is to express the speaker is sure about what he/she said.

So in this sentence, it's more like, "I'm sure he will come back soon."

In this usage, 会 or 不会 is often used. For example, 他不常迟到,他一定会准时到的 (He's not often be late. (I'm sure) he will be on time.

For more examples, you can check the link below: https://resources.allsetlearning.com/chinese/grammar/Using_%22de%22_(modal_particle)

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