raisyuu no kaigi ha zizyou ga atte enki ni narimasita.

の connects two nouns and shows that the second noun is related to the first one.

So:

• 来週 = next week
• 会議 = meeting
• 来週の会議 = next week’s meeting / the meeting next week

In English, we often use ’s or just put one noun before another. In Japanese, の is the very common way to make that connection.

は marks the topic of the sentence.

So in:

• 来週の会議は…

the speaker is saying, As for next week’s meeting...

This does not necessarily mean 会議 is the grammatical subject in the same way as in English. It means the sentence is talking about that meeting, and then gives information about it.

A very literal breakdown is:

• As for next week’s meeting, ... it became postponed.

事情（じじょう） means something like:

• circumstances
• situation
• reasons
• certain circumstances

It is often used when the speaker does not want to explain the reason in detail.

So 事情があって has a vague, polite feeling, like:

• because of certain circumstances
• for some reason(s)
• due to circumstances

It is a very natural phrase when you want to avoid sounding too direct or too specific.

Here, が marks 事情 as the thing that exists.

The phrase is built from:

• 事情がある = there are circumstances / there is a reason

Then it becomes:

• 事情があって = because there are circumstances / since there are reasons

Using が is natural because ある often takes が for what exists.

If you used 事情は, it would sound more contrastive, as if you were saying something like:

• As for the circumstances, ...

That is not the normal phrasing here.

あって is the て-form of ある.

• ある = to exist / to have
• あって = and there is / because there is

In this sentence, it connects 事情がある to the main result:

• 事情があって、延期になりました。
• Because there were circumstances, it was postponed.

The て-form often links clauses and can imply:

• and
• because
• so

Here it has a clear reason/cause feeling.

More or less, yes.

Very literally:

• 事情がある = circumstances exist

Natural English equivalents include:

• there are circumstances
• there is a reason
• for certain reasons
• due to circumstances

So although 事情 is not exactly the same word as reason, that is often the most natural way to understand it in context.

This is a very common question.

• 延期する = to postpone something
• 延期になる = to become postponed / to end up postponed

So:

• 延期しました means someone postponed it
• 延期になりました means it was postponed / it ended up being postponed

In this sentence, the speaker focuses on the resulting state of the meeting, not on who did it.

That makes it sound natural and somewhat impersonal, which is very common in Japanese announcements.

Because Noun + に + なる is a common pattern meaning:

• to become X
• to end up as X

Here:

• 延期 = postponement
• 延期になる = to become a postponement / to be postponed

This pattern appears a lot in Japanese:

• 春になりました = it became spring
• 元気になりました = became well
• 中止になりました = was canceled

So 延期になりました is a standard expression.

It is similar in meaning to an English passive such as was postponed, but grammatically it is not exactly the same thing.

Japanese has a real passive form, for example:

• 延期されました

But 延期になりました is often more natural when talking about schedules, events, plans, decisions, and announcements.

Compare:

• 会議は延期になりました。
  = The meeting has been postponed.
  (focus on the changed state/result)

• 会議は延期されました。
  = The meeting was postponed.
  (more directly passive)

Both can be correct, but 延期になりました is especially common in everyday formal communication.

Japanese often leaves out information that is understood or not important.

In this sentence, the speaker does not mention who made the decision. That is completely normal.

The focus is on:

• the meeting
• the reason being vague
• the result: postponement

In English, we might also do this:

• The meeting has been postponed.

We do not always need to say by whom.

Yes, very much so.

It often sounds like:

• there are some circumstances
• for personal reasons
• due to circumstances

It is useful when:

• the full reason is private
• the reason is complicated
• the speaker does not want to explain everything
• being vague is more polite

So the sentence has a natural, slightly formal, non-specific tone.

A very literal breakdown is:

• 来週の会議は = as for next week’s meeting
• 事情があって = because there are circumstances
• 延期に = into postponement
• なりました = became

So literally:

• As for next week’s meeting, because there are circumstances, it became postponed.

That sounds unnatural in English, but it helps show how the Japanese grammar works.

No. Standard Japanese is usually written without spaces:

• 来週の会議は事情があって延期になりました。

The spaces here are just for learners, to make the parts easier to see.

That is very common in teaching materials, but not in normal Japanese writing.