Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
must approve
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "must approve" is correct and usable in written English.
It can be used when indicating that something requires formal consent or agreement from someone before proceeding. Example: "The project proposal must approve by the board before any work can begin."
✓ Grammatically correct
News & Media
Academia
Formal & Business
Alternative expressions(4)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
The sponsor must approve the design.
News & Media
The N.F.L. must approve the agreement.
News & Media
Congress must approve these nuclear deals.
News & Media
Institutional review boards must approve the research.
News & Media
The N.B.A. must approve the deal.
News & Media
Mr. Sunstein must approve new government rules.
News & Media
The Senate also must approve treaties.
Encyclopedias
Also, the F.A.A. must approve the sale.
News & Media
Schwarzman must approve any other chartered flights.
News & Media
Georgia still must approve the plan.
News & Media
Regulators must approve the agreement.
News & Media
Expert writing Tips
Best practice
When using "must approve", ensure the context clearly identifies who is responsible for giving approval and what criteria they should use.
Common error
Avoid using "must approves" or "must be approve". The correct form is "must approve", as "must" is a modal verb that doesn't change form based on the subject.
Source & Trust
88%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "must approve" functions as a modal verb phrase, indicating obligation or necessity. It specifies that a certain entity or authority is required to give their formal consent or agreement for something to proceed. Ludwig examples show its use in various contexts such as legal agreements, research protocols, and organizational decisions.
Frequent in
News & Media
51%
Academia
19%
Formal & Business
11%
Less common in
Encyclopedias
4%
Wiki
2%
Science
13%
Ludwig's WRAP-UP
The phrase "must approve" is a common and grammatically correct way to express a mandatory requirement for approval, as affirmed by Ludwig AI. It is frequently used in News & Media, Academia, and Formal & Business contexts. When using this phrase, be sure to clearly identify the entity responsible for approval and the criteria they should apply. Related phrases include "is required to approve" and "needs to authorize", with minor differences in emphasis. A key writing guidance is to ensure correct subject-verb agreement, avoiding errors like "must approves". Overall, "must approve" is a versatile phrase for indicating necessary authorization across various domains.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is required to approve
Emphasizes the obligatory nature of the approval process.
needs to authorize
Focuses on the act of giving official permission or sanction.
is essential to ratify
Highlights the importance of formal validation or confirmation.
is imperative to endorse
Stresses the critical need for support or approval.
has to sanction
Suggests a formal or authoritative approval.
is obligated to validate
Highlights a legal or moral duty to confirm the legitimacy of something.
is bound to consent to
Implies a contractual or moral obligation to agree.
is compelled to okay
Indicates a forced or strongly suggested approval.
should give the go-ahead
Suggests a less formal approval, often in project management.
has the final say
Focuses on the ultimate authority to make a decision.
FAQs
How can I use "must approve" in a sentence?
Use "must approve" to indicate a necessary condition for something to proceed. For instance, "The board "must approve" the budget before it can be implemented."
What's a more formal alternative to "must approve"?
For a more formal tone, consider using "is required to approve" or "is necessary to ratify". These alternatives, unlike "must approve", often suit professional or academic settings.
Is there a difference between "must approve" and "needs to approve"?
"Must approve" implies a stronger obligation than "needs to approve". The first suggests an unavoidable requirement, while the second indicates a need that can be addressed in various ways. Similar to "must approve" there are a lot of cases where it is a strict requirment.
What happens if something that "must approve" isn't actually approved?
If something that ""must approve"" is not approved, it means the action cannot proceed, or the decision is not valid. This depends on the context, but usually the approval is a prerequisite.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
88%
Authority and reliability
4.6/5
Expert rating
Real-world application tested