Translation guide
To confirm, verify, or ensure something is true or correct. Japanese uses different expressions depending on whether you are checking facts, ensuring an action is done, or confirming arrangements.
Make sure of the time.
Make sure to lock the door.
To check and verify that something is true, correct, or as expected.
The most common and versatile verb for 'make sure of' or 'confirm'. Used for checking facts, information, or conditions.
Please make sure of the departure time.
Formal and widely used for 'confirm' or 'verify'. Common in business and official contexts.
I'd like to confirm my reservation.
Casual loanword from English 'check'. Used for quick checks or inspections.
To take action so that something happens or is completed correctly.
Pattern meaning 'make sure to do' or 'be sure to'. Emphasizes that the action must be done without fail.
Make sure to lock the door.
I'll make sure to call tomorrow.
Casual pattern meaning 'do properly' or 'make sure to do'. Implies doing something thoroughly or correctly.
Make sure you do your homework.
Pattern meaning 'make sure to' or 'try to ensure'. Expresses effort to achieve a state or action.
Please make sure you don't leave anything behind.
To double-check plans, agreements, or mutual understanding.
Do not translate 'make sure of' word-for-word. Phrases like '確かにする' or '作る確か' are incorrect. Use the verbs and patterns above.
確かめる is more personal and active (checking with your own eyes/ears). 確認する is more formal and often used for official verification or checking records.
I checked where he was (by looking/asking).
I confirmed the data (in a report/system).
I want to make sure he's really coming.
We need to verify the facts.
Check the email and make sure there are no mistakes.