Grammar
N2 connective

Accompanying 〜に伴って

Meaning

"Accompanying ~", "as a consequence of ~" — formal parallel change.

Formation

Notes

The most formal of the three change patterns and the one that implies consequence, not just correlation. It suits social, economic and institutional shifts — 人口の増加, 制度の変更 — and reads oddly with personal feelings.

Examples

Housing is in short supply as the population grows.

Breakdown
population increase accompanying housing is insufficient

The trains stopped as the typhoon approached.

Breakdown
typhoon approach accompanying train stopped

Electricity use rose along with the temperature.

Breakdown
temperature rise accompanying amount used increased

The costs accompanying the factory move have become an issue.

Breakdown
factory relocation accompanying cost problem

The procedure became complicated with the change of system.

Breakdown
system change accompanying procedure became complex

⚠️ Often confused with

Together with / as 〜とともに

"Together with ~"; also "as ~ changes, so does …".

As ~ progresses 〜につれて

"As ~ progresses, …" — two things changing gradually in step.

In accordance with 〜に従って

"In accordance with ~"; also "as ~ progresses".