〜に伴って／に伴う: meaning and usage

How to form it

• noun+に伴って/に伴い
• verb (dictionary form)+（の）+に伴って/に伴い
• noun+に伴う+noun

How it is used

As A happens or changes, B happens with it; formal, typical of writing and the news, usually about larger changes or events: 「人口の増加に伴って」. Unlike 「〜につれて」, A can be a one-off event.

Examples

1. 人は年をとるに伴って物事を忘れがちになる。

   As people get older, they become forgetful.

2. 引っ越しに伴って、電話番号が変わりました。

   With the move, my phone number has changed.

3. 町の人口が増えるのに伴い、新しい学校が建てられた。

   As the town's population grew, a new school was built.