Wǒ gāngcái shānchú le yíge wénjiàn, kěshì wǒ yǐjīng bǎocún guo le, suǒyǐ méi wèntí.

The sentence is built in three parts:

1. 我刚才删除了一个文件
   I just deleted a file.

2. 可是我已经保存过了
   But I had already saved it.

3. 所以没问题
   So there’s no problem.

A natural breakdown is:

• subject + time + verb + 了 + object
• 可是 to introduce a contrast
• 已经 + verb + 过 + 了 to show something had already happened
• 所以 to give the result

So the logic is:

• A file was deleted
• But the speaker had already saved it
• Therefore, it is not a problem

Chinese often links ideas very directly like this, using connector words such as 可是 and 所以.

刚才 means just now / a moment ago.

In this sentence:

• 我刚才删除了一个文件
• literally: I just now deleted a file

In Chinese, time words often come before the verb, usually after the subject:

• 我刚才删除了一个文件
• 他昨天来了
• 我们已经吃饭了

So 刚才 is in a very normal position here.

A small nuance:

• 刚才 = just now, referring to a recent point in time
• 刚 can also mean just, but 刚才 sounds more clearly like a moment ago

The 了 after 删除 marks the action as completed.

So:

• 删除 = to delete
• 删除了 = deleted / have deleted

In this sentence, the speaker is talking about a completed event:

• 我刚才删除了一个文件
• I deleted a file just now

This is often called verb 了 or perfective 了. It tells you the action happened and is viewed as completed.

Compare:

• 我删除一个文件 → can sound incomplete or like a general statement
• 我删除了一个文件 → clearly says the deletion happened

Chinese usually needs a measure word between a number and a noun.

So:

• 一 + 个 + 文件
• one + measure word + file/document

That gives:

• 一个文件 = one file

Why 个?
个 is the most common general measure word, and it is often used with many everyday nouns. For 文件, 个 is perfectly normal in conversation.

As for pronunciation:

• 一 is normally yī
• but before a 4th-tone syllable, it usually changes to yí

Since 个 is pronounced gè (4th tone), 一个 becomes:

• yí ge

This is standard tone sandhi.

已经 means already.

So:

• 我已经保存过了
• I had already saved it / I have already saved it

It emphasizes that the saving happened before the current concern about deleting the file.

It often appears with a completed action:

• 我已经吃了
• 我已经看过了
• 他已经走了

In your sentence, 已经 helps explain why deleting the file is not a problem.

过 is an aspect particle that often indicates past experience.

So:

• 保存过 = have saved before / did save

In this sentence, 保存过 suggests that the action of saving was completed at some earlier point, which is what matters now.

The speaker is saying, in effect:

• I already did save it
• so deleting it now is not a problem

A useful comparison:

• 保存了 = saved it (focus on completion of the action)
• 保存过 = have saved it before / have had the experience of saving it

In real-life speech, 过 here can help stress that the saving had already happened prior to the deletion.

This is a very common learner question.

Yes, both 过 and 了 relate to completed past events, but they do not do exactly the same thing.

• 过 emphasizes prior experience / occurrence
• 了 often marks the action as now relevant or completed in the current situation

So 保存过了 can sound like:

• I’ve already saved it
• It has indeed been saved already

This combination can appear in natural speech, especially when the speaker wants to emphasize reassurance or current relevance.

In your sentence, it fits the idea:

• I deleted a file just now
• but I had already saved it
• so it’s fine

That said, depending on context, you may also hear:

• 我已经保存了
• 我已经保存过
• 我已经保存过了

All can be possible, but they are not identical in nuance.

Because 问题 is a noun: problem / issue.

Chinese commonly says:

• 没问题 = no problem
• literally: there isn’t a problem

Here 没 is short for 没有.

So these are both correct:

• 没问题
• 没有问题

But 不问题 is not grammatical, because 不 does not work this way with nouns.

A useful rule of thumb:

• 没有 / 没 is often used for not have / there is not
• 不 is often used to negate habits, preferences, or general actions

So:

• 没有问题 / 没问题 = there is no problem
• not 不问题

Yes, and that is perfectly natural in Chinese.

The sentence does this:

• 可是 = introduces a contrast
• 所以 = introduces the result or conclusion

So the logic is:

• I deleted a file just now
• but I had already saved it
• so there’s no problem

Chinese often uses linking words very explicitly. English sometimes does too:

• I deleted it, but I had already saved it, so it’s fine.

That is very similar.

So using both 可是 and 所以 in one sentence is normal and clear.

The object is understood from context.

Earlier, the sentence says:

• 一个文件 = a file

Then later:

• 我已经保存过了
• literally: I had already saved [it]

Chinese often drops objects when they are already obvious.

In English, we often need it:

• I already saved it

In Chinese, once the topic is clear, you can leave it out:

• 我已经保存过了

This is extremely common and natural.

Yes, very often it could be.

Original:

• 我刚才删除了一个文件，可是我已经保存过了，所以没问题。

A very natural shorter version is:

• 我刚才删除了一个文件，可是已经保存过了，所以没问题。

The second 我 is not wrong at all. In fact, keeping it can make the sentence feel a bit clearer or slightly more emphatic.

Chinese often omits repeated subjects when they are obvious, but it does not have to.

So both are fine:

• 可是我已经保存过了
• 可是已经保存过了

文件 can mean different kinds of file/document, depending on context.

Common meanings include:

• a computer file
• a document
• an official document

In this sentence, because the verbs are 删除 and 保存, the most natural interpretation is a computer file.

So even though 文件 is broader than just computer file, the surrounding words make the meaning clear.

That is very common in Chinese: context tells you which meaning is intended.