Why Chinese Sentences Don’t Always Work Like English

As I progressed in Chinese, sentence structure became one of the things that confused me most. The simple sentences I had learned made sense, but when I tried to express more complicated thoughts of my own, I would think of what I wanted to say in English and then try to turn it into Chinese. Sometimes it worked. Often, it didn’t.

Then I learned something that completely changed the way I looked at Chinese sentences: Chinese doesn’t always organize sentences around a subject and predicate the way English usually does. Chinese relies much more heavily on a topic-comment structure. Instead of always asking who or what is doing something, it can help to ask two different questions: What are we talking about? That is the topic. What are we saying about it? That is the comment.

This distinction can be easy to miss at first because so much beginner Chinese fits comfortably into the subject-predicate pattern English speakers already know.

What finally made it click was realizing that I had been looking for an English-style subject and predicate in sentences that were really telling me the topic first and then saying something about it.

Let’s start with the familiar subject-predicate structure:

Chinese can work that way too:

What Is a Subject?

The subject has a grammatical relationship with the predicate. In:

我 (I) is the subject: it is the person who experiences the liking expressed by the predicate.

The predicate is what the sentence says about that subject. It can tell us what the subject does, is, has or experiences. So:

English speakers are very accustomed to looking at sentences this way.

What Is a Topic?

A topic gives us the thing the sentence is about. One useful way to recognize this structure is to hear “As for X…” in your head.

Consider:

Here, 这本书 (this book) is the topic: this book is what we are talking about. But 这本书 (this book) is not the subject of 看完 (finished reading). The person who finished reading is: 我 (I).

There is another important difference here. English naturally repeats an already mentioned object with a pronoun such as it. Chinese often does not. Once 这本书 (this book) has been established as the topic, the object can simply be left unstated. That is why 我已经看完了 is naturally translated as “I’ve already finished reading it,” even though there is no word for “it” in the Chinese sentence. Adding 它 (it) would be unnecessary here.

So we can look at the sentence on two levels:

And inside that comment:

That is the distinction that matters.

A topic sets up what we’re talking about. A subject has a grammatical relationship with the predicate.

This structure also reflects how information often unfolds in conversation. We often start with something already established, then say something new about it.

Earlier, I used “as for…” as a way to hear topic-comment structure in your head. That does not mean “as for” belongs in your English translation every time you see a topic. Usually it doesn’t. “As for” is a thinking tool, not a translation rule.

Sometimes the Topic and Subject Are the Same

Take a very ordinary sentence:

Here, the two roles are much easier to see.

The sentence first establishes 中文 (Chinese) as the topic. The comment is 我很喜欢 (I really like it), and 我 (I) is the subject of that comment.

The basic idea is still the same: I like Chinese. What changes is the starting point. Instead of beginning with 我 (I), the speaker begins with 中文 (Chinese) and organizes the sentence around that topic.

This kind of topic-first wording also works especially well for contrast, when the speaker wants to move from “as for this one…” to “as for that one…”

English Does This Too

Topic-comment organization is not completely foreign to English. Imagine someone asks about restaurants in your neighborhood and you say: “That little Italian place on Main Street? I love their pizza.”

Notice that the subject of the comment is I, not that little Italian place. The word their points back to the restaurant, making it clear that the comment is still about that topic.

English speakers use structures like this naturally, especially in conversation. The difference is that Mandarin uses topic-comment organization much more freely and routinely than English does.

Chinese Is Not Simply “Topic-Comment Instead of Subject-Predicate”

This is an important qualification.

You will sometimes hear Chinese described as a topic-prominent language and English as a subject-prominent language. That distinction is useful, but it can be misleading if taken too literally.

Chinese did not throw subjects and predicates out the window.

Topic-comment and subject-predicate are not two competing systems. They describe different relationships within a sentence.

A Chinese sentence can have a subject and predicate and also a topic and comment.

Topic-comment structure is also more than simply taking an ordinary subject-verb-object sentence and moving something to the front. Sometimes you can rearrange a sentence that way and get a natural topic-comment sentence, but that is not the whole story. Chinese can simply begin with the topic the speaker wants to talk about and then say something about it.

Here’s a good example:

This time, 音乐 (music) is not an object that has been moved to the front. The comment already has its own object: 爵士乐 (jazz). 音乐 (music) simply establishes the broader topic, and the rest of the sentence tells us something about it.

That is an important difference. A topic can come from elsewhere in the sentence, as we have seen in earlier examples, but it does not have to. Sometimes it simply establishes what the conversation is about.

For a learner, the point is not to replace everything you know about subjects with a completely different grammar system. It’s to add another way of looking at sentences.

When a Chinese Sentence Doesn’t Seem to Make Sense

This distinction becomes especially useful when a Chinese sentence does not seem to fit the English pattern you expect.

Take this sentence:

If you automatically expect the first thing in the sentence to be the subject, 那家饭店 (that restaurant) can be confusing. A restaurant cannot be the one doing the going.

But once you recognize 那家饭店 (that restaurant) as the topic, the structure becomes much easier to see. It tells us what we are talking about, and 我还没去过 (I haven’t been there yet) tells us something about it. Within that comment, 我 (I) is the subject.

One Idea, Two Different Ways of Organizing It

English tends to train us to look for who is doing what.

Topic-comment thinking asks us to look at the sentence differently: What are we talking about, and what do we want to say about it?

Once I started recognizing topic-comment structure, those sentences stopped throwing me off. The Chinese itself was exactly the same, but suddenly I could see the logic behind it. Sentences that had once seemed difficult to make sense of became much easier to follow.

Very often, the sentence was perfectly ordinary.

It just wasn’t what I was expecting.