have to know vs need to know

Both 'have to know' and 'need to know' are correct phrases in English, but they are used in slightly different contexts. 'Have to know' implies a requirement or obligation to know something, while 'need to know' suggests a necessity or importance of knowing something.

Last updated: April 14, 2024 • 120 views

This phrase is correct and commonly used in English to express a requirement or obligation to know something.

"have to know"

Use 'have to know' when emphasizing that knowing something is mandatory or necessary for a particular purpose.

Examples:

You have to know the password to access the system.
I have to know the details before making a decision.

Show examples from the web [+]

Aug 15, 2011 ... What do we have to know from migrants' past exposures to understand their health status? a life course approach. Emerg Themes Epidemiol.
You have to know your body as the home of God And this is the purpose of Christmas. The rose blossoming in the wilderness is the unfolding of your pleasure
Other states don't make you get permission, but your parents will have to know that you're getting an abortion. And some states don't have any laws about ...
Nov 17, 2021 ... Do you have to know how to swim to scuba dive? Is that a good idea? What advantages or disadvantages does it bring me? Let's see it.
It is fun to have fun, but you have to know how. Get all the details, meaning, context, and even a pretentious factor for good measure.
Dec 22, 2019 ... To gather this info, I dissected dozens of previous ACT Science test sections to find the concepts you have to know. As far as we can tell, ...
Many times, the state will provide the material you have to know. Even in these jurisdictions, you will still apply general law on the bar exam. Looking to Pass ...

Alternatives:

must know
required to know
need to be aware of

This phrase is correct and commonly used in English to express a necessity or importance of knowing something.

"need to know"

Use 'need to know' when emphasizing the importance or relevance of knowing something without implying a strict requirement or obligation.

Examples:

Employees only have access to information on a need-to-know basis.
She needs to know the schedule for tomorrow's meeting.

Show examples from the web [+]

web-magazine integrating news with a touch of insight, perspective and wit. More More. PBS's new TV and web newsmagazine gives you what you need to know ...
Aug 18, 2020 ... Phase IV clinical trials: What else do we need to know? Drugs approved by the FDA are often watched over a long period of time in phase IV ...

Alternatives:

must know
required to know
have to know

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have to know vs need to know

"have to know"

"need to know"

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