Wǒ wǎnshang xiǎng xiān shàngchuán bàogào, zài dēnglù wǎngzhàn kàn lǎoshī yǒuméiyǒu shōudào.

In Chinese, time expressions usually come before the main verb, often near the beginning of the sentence.

So 我晚上想先上传报告 follows a very common order:

subject + time + modal/auxiliary + verb

Examples:

• 我晚上学习。 = I study in the evening.
• 他明天去学校。 = He is going to school tomorrow.

You can also move the time phrase earlier for emphasis:

• 晚上我想先上传报告……

That is also natural.

Here 想 means something like want to or am thinking of doing something.

In Chinese, 想 can have different meanings depending on context:

• 想 + verb = want to / would like to
• 想 + clause = think / suppose
• 想念 = miss someone

In this sentence, 想先上传报告 means the speaker has the intention or plan to do it.

Compared with similar words:

• 想 = want to / am thinking of
• 要 = going to / want to / need to, often stronger or more definite
• 打算 = plan to

So 想 sounds natural and a bit softer than 要 here.

先 means first, and 再 means then / after that.

Together they show the order of actions:

• 先上传报告 = first upload the report
• 再登录网站 = then log into the website

This is a very common pattern in Chinese:

先 + action 1，再 + action 2

Examples:

• 先吃饭，再做作业。 = First eat, then do homework.
• 先洗手，再吃。 = Wash your hands first, then eat.

So in your sentence, the speaker is describing the intended sequence very clearly.

Because the subject is the same, Chinese often leaves it out in the second clause.

So:

• 我晚上想先上传报告，再登录网站……

is understood as:

• 我晚上想先上传报告，我再登录网站……

But repeating 我 would usually sound unnecessary unless you want extra emphasis or contrast.

This kind of omission is very common in Chinese when the subject stays the same across connected actions.

Chinese often does not use prepositions in the same way English does.

In English, you say:

• log in to the website

In Chinese, the verb 登录 can take 网站 directly as its object:

• 登录网站

This is normal Chinese grammar. Many verbs that need a preposition in English do not need one in Chinese.

So 登录网站 is the natural way to say log into the website.

Here 看 means check or see whether, not just physically look at something.

In Chinese, 看 is often used very broadly:

• 看书 = read a book
• 看医生 = see a doctor
• 看一下 = take a look / check
• 看老师有没有收到 = check whether the teacher has received it

So in this sentence, 看 is closer to check than to simple visual looking.

有没有收到 means whether ... has received it / received it or not.

It is made from:

• 有 = have
• 没有 = not have / have not
• 收到 = receive / have received

The pattern 有没有 + verb/result is a common way to ask whether something happened or whether a result was achieved.

So:

• 老师有没有收到 = Has the teacher received it?

It is functioning as an embedded yes-no question after 看:

• 看老师有没有收到 = check whether the teacher has received it

Both types of patterns exist in Chinese, but 有没有收到 is very common and natural here.

Two common yes-no patterns are:

1. V-没-V

   • 去没去
   • 是不是
   • 能不能

2. 有没有 + verb/result

   • 有没有看到
   • 有没有收到
   • 有没有写完

With completed actions, 有没有 + verb/result is especially common in everyday speech.

So:

• 老师有没有收到？ = Has the teacher received it?
• 老师收到了没有？ = Did the teacher receive it or not?

Both are understandable, but 有没有收到 sounds very natural in this sentence.

The object is understood from context: it is 报告.

Chinese often leaves out an object when it is already obvious.

So the full idea is:

• first upload the report
• then log into the website to check whether the teacher has received the report

Repeating 报告 would be possible, but it is usually unnecessary:

• 看老师有没有收到报告

That version is also correct, just a little more explicit.

Here 上传 is being used as a single verb meaning upload.

So:

• 上传报告 = upload the report

In modern Chinese, many tech-related words like 上传, 下载, 登录 are commonly treated as normal verb units.

You will usually see them used directly with their objects:

• 上传文件 = upload a file
• 下载图片 = download an image
• 登录账号 = log into an account

For a learner, the safest approach is to treat 上传 as one verb meaning upload.

Because in this word, 上 is usually pronounced with a neutral tone.

So:

• 晚上 = wǎnshang

This is very common in everyday Mandarin. Many time words use a neutral second syllable:

• 早上 = zǎoshang
• 晚上 = wǎnshang

Learners often expect a full fourth tone on 上, but in this word it is usually light and unstressed.

You usually would not add 了 in the sentence as written, because the speaker is talking about an intention or plan, not completed actions.

The sentence is about what the speaker wants to do later:

• 想先上传……再登录……

If you add 了, the meaning changes.

For example:

• 我晚上先上传了报告，再登录网站看老师有没有收到。

This sounds like the upload has already been completed before the next action, or it can make the timeline feel different.

So in a sentence about planned actions, leaving out 了 is the natural choice.

Yes, absolutely.

看看 is a very common reduplication of 看. It often makes the action sound:

• lighter
• more casual
• more tentative

So:

• 看老师有没有收到 = check whether the teacher received it
• 看看老师有没有收到 = take a look/check whether the teacher received it

Both are natural. 看看 may sound slightly softer and more conversational.

It sounds like an intention or plan the speaker has in mind, but not necessarily a fixed, guaranteed schedule.

That comes mainly from 想.

So the feeling is:

• I’m thinking I’ll first upload the report this evening, then log into the website to check...

If the speaker wanted to sound more definite, they might use:

• 要
• 会
• 打算

For example:

• 我晚上要先上传报告…… = I’m going to upload the report tonight...
• 我晚上打算先上传报告…… = I plan to upload the report tonight...

So 想 is natural, but a bit softer than the strongest planning expressions.

Yes, the comma helps separate the two main actions:

• 先上传报告
• 再登录网站看老师有没有收到

In Chinese writing, commas are often used to show a pause between related parts of a sentence, especially in sequences of actions.

Without the comma, the sentence would still be understandable, but the comma makes the structure clearer and easier to read.