This means that when one thing changes, another thing changes too. The first change causes the second change.
Noun + に伴ってPrimary
Verb [dictionary form] + に伴ってPrimary
This means that when one thing changes, another thing changes too. The first change causes the second change.
サービスの拡大に伴って、新しいスタッフを募集します。
In conjunction with the expansion of our services, we will be recruiting new staff.
経済成長に伴って、国民の生活水準も向上した。
Along with economic growth, the people's standard of living also improved.
人口の増加に伴って、必ずしも幸福度が上がるとは限らない。
An increase in population is not necessarily accompanied by a rise in happiness levels.
技術が進化するに伴って、私たちの働き方も大きく変わってきた。
As technology evolves, the way we work has also changed significantly.
再開発計画の実施に伴って、多くの住民が立ち退きを余儀なくされた。
With the implementation of the redevelopment plan, many residents were forced to move out.
This grammar shows that one change makes another change happen. Think of it like dominoes falling. The first domino causes the next one to fall. This is often for big changes in society or nature.
This is like 〜につれて (ni tsurete) and 〜にしたがって (ni shitagatte). But 〜に伴って shows a bigger, more important change. 〜につれて is for slow, natural changes, like getting older. 〜に伴って can be for slow changes or for one big event that causes something else. For example, 'As the festival happened...' This sounds better with 〜に伴って.
Don't use this when two things change but are not connected. For example, 'As the sun rose, I ate breakfast' is not good.
Use this when you want to sound very formal. It is like saying "along with" or "due to" in official writing. You will see it in news or reports.
Contrasts with(1)
More formal alternatives(3)
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