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JAPANESE VERB

たしかめる

確かめる

to make sure

  • #182 most used
  • Ichidan verb (ru-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 make sure
NegativeI don’t make sure

Past

finished actions

Form Polite Plain
AffirmativeI made sure
NegativeI didn’t make sure

Te-form

て形 · joining actions, “doing”, requests

Form Polite Plain
て-formmaking sure, and…
Doing now (て います)I am making sure
Please (て ください)please make sure

Potential

可能形 · “can”

Form Polite Plain
AffirmativeI can make sure
NegativeI can’t make sure

Want to

たい形 · “want to”

Form Polite Plain
AffirmativeI want to make sure
NegativeI don’t want to make sure

Volitional

意向形 · “let’s”, “I’ll”

Form Polite Plain
Let’slet’s make sure

Conditional

条件形 · “if” and “when”

  1. If (ば) if I make sure
  2. If, when (たら) if I make sure

Commands and requests

命令形 · from gentle to blunt

  1. Do it (なさい) make sure (do it)
  2. Plain command make sure!
  3. Please don’t please don’t make sure

Passive and causative

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

Form Polite Plain
PassiveI am made sure
CausativeI make someone make sure

How to use たしかめる

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

  1. Present and future

    でかける まえ に、 ガス を たしかめます。

    I make sure the gas is off before going out.

  2. Past

    ドア の かぎ を にかい たしかめた。

    I checked the door lock twice.

  3. Te-form

    ねだん を たしかめて から、 かって ください。

    Please check the price before you buy.

  4. Potential

    ほんとう か どう か、 たしかめられない。

    I can't verify whether it's true.

  5. Want to

    かれ の きもち を たしかめたい。

    I want to be sure how he feels.

  6. Volitional

    しゅっぱつ の じかん を もう いちど たしかめよう。

    Let's double-check the departure time.

  7. Conditional

    じぶん の め で たしかめれば、 あんしん でしょう。

    If you see it with your own eyes, you'll feel at ease.

  8. Commands and requests

    わたる まえ に、 みぎ と ひだり を たしかめなさい。

    Before crossing, check right and left.

  9. Passive and causative

    みせ の ひと に ねんれい を たしかめられた。

    The shop clerk checked my age.

Good to know

  • たしかめる and かくにん する mean the same; たしかめる is the softer, everyday word.

Verbs like this one

The same pattern, on other verbs: ichidan verb (ru-verb).