wǒ xiǎng zhīdào nǐ yǒuméiyǒu shōudào wǒ fā de xiāoxi.

The sentence breaks down like this:

• 我想知道 = I want to know
• 你有没有收到 = whether you have received / did receive
• 我发的消息 = the message that I sent

So the full structure is:

我想知道 + [embedded yes/no question]

In other words, instead of asking the question directly, the speaker says:

• I want to know
  • whether you received the message I sent

This is very common in Chinese.

Because 有没有 is a very common way to form a yes/no question in Chinese using the A-not-A pattern.

Here:

• 有 = have
• 没有 = not have

So 有没有 literally looks like:

• have-or-not-have

In this sentence, 有没有收到 means:

• have you received or not received
• more natural English: whether you’ve received

If you used 吗, you would usually make it a direct question, such as:

• 你收到我发的消息了吗？ = Did you receive the message I sent?

But this sentence is not a direct question by itself. It is an indirect question after 我想知道.

The A-not-A pattern is a standard Chinese yes/no question form where a verb or auxiliary is repeated in positive and negative form.

Examples:

• 是不是 = is or is not
• 要不要 = want or not want
• 能不能 = can or cannot
• 有没有 = have or not have

In 你有没有收到我发的消息, the pattern is built with 有 / 没有.

This is especially common before verbs that describe completing an action:

• 有没有看见 = did you see
• 有没有听到 = did you hear
• 有没有收到 = did you receive

So here, 有没有收到 is asking whether the result happened.

收到 is more natural because 到 shows successful completion or attainment of a result.

• 收 = to receive / accept
• 收到 = to receive successfully, to get

So:

• 你收消息了吗？ is less natural here
• 你收到消息了吗？ is the normal way to say Did you receive the message?

This is similar to other Chinese verb-result combinations:

• 看到 = see successfully / catch sight of
• 听到 = hear
• 找到 = find
• 收到 = receive

In this sentence, the speaker wants to know whether the message actually reached the other person, so 收到 is the best choice.

Because 我发的消息 means the message that I sent.

That second 我 is the subject of the verb 发 inside a descriptive phrase.

Break it down:

• 我发的 = that I sent
• 消息 = message

So the whole phrase means:

• the message that I sent

Chinese often forms relative clauses by putting the descriptive part before the noun and linking it with 的.

English:

• the message that I sent

Chinese:

• 我发的消息
• literally: I sent de message

Here 的 links a modifier to a noun.

The phrase 我发的 modifies 消息.

So:

• 我发的消息 = the message that I sent
• 你买的书 = the book that you bought
• 他写的信 = the letter that he wrote

A useful way to think about it is:

• [description] + 的 + noun

So in this sentence:

• 我发的 = the describing part
• 消息 = the noun being described

Without 的, the phrase would not work correctly.

Because Chinese usually does not need a separate word like English that in this kind of relative clause.

English uses:

• the message that I sent

Chinese uses:

• 我发的消息

The marker 的 does the grammatical job of connecting the modifying clause to the noun. So Chinese does not need a separate equivalent of English that here.

Chinese does not always need 了 to talk about completed actions.

In this sentence, completion is already clear from:

• 收到, which includes the result idea
• 有没有, which asks whether that result happened
• 我发的消息, which already implies the message was sent

So 了 is not necessary.

For example:

• 你收到我发的消息了吗？ is also correct as a direct question
• But in 我想知道你有没有收到我发的消息, adding 了 would usually be unnecessary

Chinese often relies on context and verb patterns rather than marking tense the way English does.

It often sounds quite natural and can be softer than a blunt direct question.

Depending on context, 我想知道... can mean:

• I want to know...
• I was wondering...
• I’d like to know...

So this sentence can sound more polite or less abrupt than directly asking:

• 你收到我发的消息了吗？ = Did you receive the message I sent?

By starting with 我想知道, the speaker frames it as their wish to know, which can feel gentler.

Yes, in more formal written Chinese.

You could say:

• 我想知道你是否收到我发的消息。

This means the same thing: I want to know whether you received the message I sent.

Difference in tone:

• 有没有 = more common in everyday speech
• 是否 = more formal, more written, more official

So for normal conversation, 有没有 is usually the more natural choice.

Yes. A more direct version would be:

• 你收到我发的消息了吗？

That means:

• Did you receive the message I sent?

Compared with the original:

• 我想知道你有没有收到我发的消息。

The original is slightly less direct because it starts with I want to know whether...

So the difference is mostly about tone and phrasing, not basic meaning.

They can overlap, but they are not exactly the same.

• 消息 = message, news, information conveyed to someone
• 信息 = information; sometimes also used for message, especially in modern usage
• 短信 = text message / SMS

In this sentence, 消息 is very natural if you mean a message sent through chat, an app, or general communication.

Examples:

• 我发的消息 = the message I sent
• 我发的信息 = also possible, often similar in modern Chinese
• 我发的短信 = specifically the SMS/text message I sent

So 消息 is broad and very common in daily speech.

Here 发 clearly means to send.

But 发 is a very common verb with many meanings in Chinese, such as:

• 发消息 = send a message
• 发邮件 = send an email
• 发烧 = have a fever
• 发火 = get angry
• 发现 = discover

So learners should understand 发 from context. In 我发的消息, it definitely means sent.

Chinese puts the descriptive clause before the noun, while English usually puts it after.

English:

• the message that I sent

Chinese:

• 我发的消息

So the order is:

• I sent + de + message

This is one of the most important differences between English and Chinese grammar. When a noun is being described by a clause, Chinese normally places that clause before the noun.

More examples:

• 他买的车 = the car that he bought
• 我们昨天看的电影 = the movie that we watched yesterday
• 老师推荐的书 = the book that the teacher recommended

Yes, it is natural and correct.

It sounds like something a person might say when checking on a message:

• 我想知道你有没有收到我发的消息。

In casual spoken Mandarin, people might also say:

• 我想问一下，你有没有收到我发的消息？
• 你有收到我发的消息吗？
• 你收到我发的消息了吗？

All are natural, but they differ slightly in tone:

• 我想知道... = a bit more indirect
• 我想问一下... = polite and conversational
• 你收到...了吗？ = straightforward direct question