according to

によると、によれば

情報や指示の出所となる人、文書などを示す。

やさしい英語で： Used to name the person, document, or other source that gives information or instructions.

• According to Tom, the shop is closed.
• The bridge is safe, according to the engineers.
• According to the instructions, we need two batteries.

使い方： according to someone/something (According to the forecast, it will rain tonight.)

類義語： as stated by

よく使う表現： according to someone, according to the report

に従って、に応じて

規則や計画、仕組みに従って、または量や必要に合わせて。

やさしい英語で： In a way that follows a rule, plan, or system, or matches an amount or need.

• Sort the books according to subject.
• They divided the money according to need.
• Everything went according to plan.

使い方： according to something (Arrange the boxes according to size.)

類義語： in accordance with, in line with

よく使う表現： according to plan, according to size

次第で、によって

特定の状況や条件によって。

やさしい英語で： Depending on a particular situation or condition.

• Prices change according to the season.
• We will travel by bus or train according to availability.
• Her plans varied according to her mood.

使い方： according to something (We may stay longer, according to the weather.)

類義語： depending on

よく使う表現： according to circumstances, according to the weather