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JAPANESE VERB

けいやく する

契約 する

to sign a contract

  • する verb

Conjugation

Tap any form to hear it. The part that changes is in colour.

Present and future

now, habits, and what is to come

Form Polite Plain
AffirmativeI sign a contract
NegativeI don’t sign a contract

Past

finished actions

Form Polite Plain
AffirmativeI signed a contract
NegativeI didn’t sign a contract

Te-form

て形 · joining actions, “doing”, requests

Form Polite Plain
て-formsigning a contract, and…
Doing now (て います)I am signing a contract
Please (て ください)please sign a contract

Potential

可能形 · “can”

Form Polite Plain
AffirmativeI can sign a contract
NegativeI can’t sign a contract

Want to

たい形 · “want to”

Form Polite Plain
AffirmativeI want to sign a contract
NegativeI don’t want to sign a contract

Volitional

意向形 · “let’s”, “I’ll”

Form Polite Plain
Let’slet’s sign a contract

Conditional

条件形 · “if” and “when”

  1. If (ば) if I sign a contract
  2. If, when (たら) if I sign a contract

Commands and requests

命令形 · from gentle to blunt

  1. Do it (なさい) sign a contract (do it)
  2. Plain command sign a contract!
  3. Please don’t please don’t sign a contract

Passive and causative

受身形・使役形 · “is done”, “make someone do”

Form Polite Plain
PassiveI am signed a contract
CausativeI make someone sign a contract

How to use けいやく する

One sentence for each tense, the way people say it.

  1. Present and future

    らいげつ から、 あたらしい じむしょ と けいやく します。

    From next month, we're contracting with a new office.

  2. Past

    ことし の はる、 この アパート を けいやく した。

    This spring I signed the lease on this flat.

  3. Te-form

    スマホ は にねん けいやく して います。

    My phone is on a two-year contract.

  4. Potential

    がくせい でも、 ひとり で けいやく できます か？

    Can a student sign a contract alone?

  5. Want to

    じょうけん が よければ、 すぐ に けいやく したい。

    If the terms are good, I want to sign right away.

  6. Volitional

    この かいしゃ と けいやく しよう。

    Let's sign with this company.

  7. Conditional

    きょう けいやく すれば、 いっかげつ むりょう です。

    If you sign today, the first month is free.

  8. Commands and requests

    よく よんで から けいやく しなさい。

    Read it carefully before you sign.

  9. Passive and causative

    この へや は、 もう けいやく されて います。

    This room is already under contract.

Good to know

  • けいやく する takes と for the other party: かいしゃ と けいやく する. けいやくしょ is the contract paper, and けいやく を むすぶ is to enter into one.
  • It covers phones, flats and jobs: スマホ を けいやく する, アパート を けいやく する.

Where you hear けいやく する

The lessons that teach a form of it, and how they say it.

Japanese · Intermediate Level 3

  • うち の かいしゃ は、 たくさん の ホテル と けいやく して います。 Our company has contracts with a lot of hotels.
  • いちがつ に、 つばめ トラベル と けいやく しました。 In January, we signed a contract with Tsubame Travel.
  • らいげつ、 あたらしい ホテル と けいやく します。 Next month, we're signing a contract with a new hotel.

Verbs like this one

The same pattern, on other verbs: する verb.