こともあって means partly because; also because of; plus the reason for ~. It is a JLPT N1 Japanese grammar pattern used to explain that a situation has multiple contributing factors, and you are highlighting one of them without claiming it’s the sole cause.
This grammar point often appears in essays, explanations, formal conversations, and JLPT N1 reading passages. If you want to express that something happened partly because of a certain reason, こともあって is a useful pattern because it adds natural softness and a sense of layered causality to your Japanese.
こともあって doesn’t point to a single, definitive cause — it suggests that several factors are at play, and the reason you’re giving is one meaningful piece of the puzzle.
What does こともあって mean?
Use こともあって when you want to express that a result or situation is influenced by a particular reason, but you’re not saying that reason is the only explanation. It often appears when listing or implying multiple causes, and it softens the causal link.
Natural translations include:
- partly because; also because of; plus the reason for ~
- given that (along with other things)
- what with (this) and all
The core idea is always “this is one reason among others.”
How to form こともあって
Examples of the pattern:
- 雨が降ったこともあって
- 駅から遠いこともあって
- 便利なこともあって
- 経験もあって / 経験ということもあって
When is こともあって used?
Use こともあって in situations like:
- explaining that a situation has multiple causes, and you’re naming one of them
- giving a reason while leaving room for other, unstated factors
- reporting events where several circumstances converged (news, storytelling, analysis)
- expressing observations in a calm, explanatory tone
Tone and register:
- neutral to slightly formal; works in both written and spoken Japanese
- naturally softens a statement and avoids sounding insistent or single-minded
- common in newspaper articles, essays, explanatory texts, and everyday conversation when you want to sound thoughtful
こともあって example sentences
After reading each sentence, ask what job こともあって is doing: it’s signalling one contributing reason, not the whole story.
Nuance of こともあって
The key nuance is “this is one reason among several.” When you use こともあって, you’re deliberately softening the causal relationship. You avoid the impression that you’re oversimplifying a complex situation.
This matters because learners often mistake it for a straightforward reason marker like から or ので. But こともあって carries an extra layer: other things also contributed, and I’m giving you one of them. This is especially useful when the speaker wants to sound modest, thoughtful, or neutral.
For example:
- 天気もあって人が少なかった → The weather was one reason, but maybe school holidays ended or it was early morning, etc.
- In explanations, it often pairs with other implied reasons, and listeners naturally understand that the list isn’t exhaustive.
こともあって vs し
Both こともあって and し can list multiple reasons, but they work differently.
Quick contrast examples:
Is the speaker focusing on a single contributing factor within a larger context, or are they rattling off a series of reasons?
Common mistakes with こともあって
A helpful practice method is to write one sentence with こともあって, then rewrite it with し or ので.
Is こともあって on the JLPT?
That means learners should be able to:
- recognize it in reading
- understand its nuance in context
- use it in simple original sentences
Practice questions for こともあって
Learning path for こともあって
Related grammar to review next
- ごとく — because it also uses the formal こと-based structure common at N1 level, and both patterns add a literary or explanatory tone.
- この上ない — because it shares the こと element and expresses a high degree of something, useful in sentences where you might soften the claim with こともあって.
- なしに — because it deals with the absence of something as a factor; you can contrast “なしに (without)” with “もあって (partly due to)” to see how presence/absence shapes an outcome.
- ことのないように — because it’s another こと-based expression that deals with prevention or avoidance, and when combined with こともあって you can explain complex cause-and-effect chains.
Learn こともあって with Hane
If you want to review こともあって together with the related patterns above, Hane helps you practice Japanese in short, focused sessions.
Browse more lessons here:
FAQ about こともあって
What does こともあって (koto mo atte) mean in Japanese?
こともあって (koto mo atte) means “partly because; also because of; plus the reason for”. It is JLPT N1 grammar. Use こともあって when you want to express that a result or situation is influenced by a particular reason, but you’re not saying that reason is the only explanation. It often appears when listing or implying multiple causes, and it softens the causal link.
How do you form こともあって (koto mo atte)?
Verb (plain) + こともあって い-adjective (plain) + こともあって な-adjective + な + こともあって Noun + もあって or ということもあって
What is an example sentence with こともあって (koto mo atte)?
昨日は雨だったこともあって — Partly because it rained yesterday, the shop was empty.