〜に伴い

〜に伴い is a conjunction meaning along with / as ~ occurs, used to connect clauses and express logical relationships between ideas. Japanese has a rich set of conjunctions that convey subtle differences in meaning — contrast, cause, concession, addition — and using them correctly makes your Japanese flow naturally.

This is an advanced pattern found primarily in formal writing, news articles, business Japanese, and academic texts.

When to Use#

• When one change directly accompanies another
• When two developments happen simultaneously as cause and effect

When NOT to Use#

• In very casual speech — a simpler expression is usually more natural

Example Sentences#

• 経済発展に伴い、環境問題が生じました。 — Along with economic development, environmental problems have emerged.
• 経済の成長に伴い、消費も増えています。 — As the economy grows, consumption is also increasing.
• 経済成長に伴い、税制が複雑になりました。 — With economic growth, the tax system has become more complex.

Practice#

Try reading these sentences aloud, then check the translation and vocabulary:

Common Mistakes#

1. Using 〜に伴い interchangeably with 〜につれて — These patterns are similar but not identical. 〜につれて (as / in proportion to) may be preferred in different contexts or registers.
2. Using 〜に伴い in casual conversation — This pattern sounds overly formal or literary in casual speech. Reserve it for formal writing, presentations, or situations that call for elevated language.
3. Direct translation from English — The concept expressed by 〜に伴い may not map one-to-one with its English translation. Focus on understanding the Japanese usage through example sentences rather than relying on the English gloss.

Related Patterns#

• 〜につれて (as / in proportion to) — Similar