i must be sure

USAGE SUMMARY

'I must be sure' is a correct and usable sentence in written English.
You can use it when you want to express a sense of urgency and certainty. For example, "I must be sure to set aside time each day to read the news."

✓ Grammatically correct

News & Media

Science

Academia

Human-verified examples from authoritative sources

Exact Expressions

5 human-written examples

On my way home, I must be sure to look out of the train window to affirm for myself the plurality of said bridges.

The Guardian

"I must be sure that what I say about them is absolutely God's truth, and after 40 years your memory might have adjusted situations".

The Guardian

Dr. Frith, when we met in London, expanded on these themes, and said I must be sure to visit one of the most remarkable autistic people she knew — to see her at work and at home, to spend time with her.

The New Yorker

Dr. Frith, when we met in London, expanded on these themes, and said I must be sure to visit one of the most remarkable autistic people she knew to see her at work and at home, to spend time with her.

The New Yorker

By choosing generic, therefore universal, examples of memories and carefully pacing off the implications of her speculations -- If I am playing a board game with people close to me and we are happy, I must be sure we don't quarrel before the end of it" -- Davis adroitly deepens her plinking notes with the grand sonorities of philosophical inquiry.

The New York Times - Books

Human-verified similar examples from authoritative sources

Similar Expressions

55 human-written examples

In Brontë's Jane Eyre, one of Jane's classmates says "I am very happy, Jane; and when you hear that I am dead, you must be sure and not grieve; there is nothing to grieve about.

ACS Infectious Diseases

"I would be nothing if there was not a director or crew or other actors … I already knew Asghar and his films, and that the stories were told so beautifully, he must be sure I was right for the role".

The Guardian - Film

But you must be sure.

Los Angeles Times

More than a dozen years ago, when producers first approached me to adapt Philip Roth's Pulitzer Prize-winning "American Pastoral" for the screen, I was sure I must be the wrong writer.

Los Angeles Times

(Though I am absolutely sure I must be overlooking someone else — but whom? Whom, America? WHOM?) In summation: Mark Wahlberg may well be the greatest actor of his generation.

The New York Times

"I think they must not be sure of the offer," said Jesse Lunin-Pack, 29, an investment banker at Lehman Brothers.

The New York Times

Expert writing Tips

Best practice

When using "I must be sure", clearly state the action you need to confirm or verify to provide context for your statement.

Common error

Avoid using "I must be sure" when the situation involves uncertainty or speculation, as it creates a false impression of conviction.

Linguistic Context

The phrase "I must be sure" functions as a declaration of intent or obligation. It indicates a personal commitment to verifying or confirming something. As seen in Ludwig's examples, it often precedes a specific action that requires confirmation.

Expression frequency: Uncommon

Frequent in

News & Media

60%

Academia

20%

Science

20%

Less common in

Formal & Business

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, the phrase "I must be sure" expresses a personal commitment to verifying or confirming something. Ludwig AI confirms its grammatical correctness and usability. While not overly common, it appears in diverse contexts, particularly in news media and academic writing. When using this phrase, it's best to clarify the specific action that requires verification. Avoid using it when certainty is not achievable. Related phrases include "I have to ensure" and "I need to make certain".

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

I have to ensure

Emphasizes the obligation to guarantee a specific outcome.

I need to make certain

Focuses on the need for verification or confirmation.

I have to double-check

Focuses on the act of re-examining something to ensure accuracy.

I am obligated to confirm

Highlights a formal duty to verify information.

I should verify

Highlights the act of checking or confirming something.

It's essential for me to check

Emphasizes the importance of personally performing the verification.

I am compelled to ascertain

Presents a stronger sense of obligation and a more formal tone.

I'm required to validate

Indicates a mandatory need to confirm accuracy or legitimacy.

I am determined to guarantee

Highlights a strong sense of resolve to assure a specific result.

It is imperative that I confirm

Highlights the critical need for personal verification.

FAQs

How can I use "I must be sure" in a sentence?

You can use "I must be sure" to express a personal commitment to confirming or verifying something. For instance, "I must be sure to double-check the figures before submitting the report."

What phrases are similar to "I must be sure"?

Alternatives include "I have to ensure", "I need to make certain", or "I should verify".

When is it appropriate to use "I must be sure"?

Use "I must be sure" when you want to convey a sense of personal responsibility and commitment to confirming something. It's most appropriate when accuracy is critical.

What's the difference between "I must be sure" and "I want to be sure"?

"I must be sure" indicates a necessity or obligation to confirm something, while "I want to be sure" expresses a desire or preference for certainty. The former carries more weight and urgency.