JapaneseJLPT
JLPT N4 grammar · Chapter 14

~ことになっています

Something is arranged or established as a rule

You'll be able to describe standing plans, schedules, customs, and rules already in effect.

Illustration of the scene described by The rule here is to take off your shoes.
Read it first

ここでは靴くつを脱ぬぐことになっています。

koko dewa kutsu o nugu koto ni natte imasu.

What do you think this sentence means?

The rule here is to take off your shoes.

Why it means that

Describe an established rule or arrangement

~ことになっています describes a standing rule, schedule, or agreed arrangement. It is what is supposed to happen, even if someone sometimes fails to follow it.

Example

九時くじに集あつまることになっています。

kuji ni atsumaru koto ni natte imasu.

We are supposed to gather at nine.

How it is built

Form and use ~ことになっています

The ている form describes the arrangement currently in effect. A personal habit is more naturally ことにしている when the speaker’s own decision matters.

Verb dictionary form / ない-form+ことになっています
Examples

九時くじに集あつまることになっています。

kuji ni atsumaru koto ni natte imasu.

We are supposed to gather at nine.

教室きょうしつでは食たべないことになっています。

kyoushitsu dewa tabenai koto ni natte imasu.

The rule is not to eat in the classroom.

Examples

この寮りょうでは、夜よる十一時じゅういちじまでに帰かえることになっています。

kono ryou de wa, yoru juuichiji made ni kaeru koto ni natte imasu.

In this dormitory, you're supposed to be back by eleven at night.

この会社かいしゃでは、朝あさ九時くじまでに来くることになっています。

kono kaisha de wa, asa kuji made ni kuru koto ni natte imasu.

At this company, you're supposed to arrive by nine in the morning.

図書館としょかんの本ほんは二週間にしゅうかんで返かえすことになっています。

toshokan no hon wa nishuukan de kaesu koto ni natte imasu.

Library books are supposed to be returned within two weeks.

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