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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 complete
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "must complete" is correct and usable in written English.
It is typically used to indicate that something is required to be finished or accomplished. Example: "All participants must complete the registration form before the deadline."
✓ Grammatically correct
Academia
News & Media
Alternative expressions(18)
are required to complete
need to complete
have to do
it is imperative to complete
are expected to complete
is imperative to complete
is essential to finish
it is necessary to complete
is essential to
have to fill out
must provide
need to fulfil
are required to achieve
are expected to meet
are advised to fill
are advised to wear
are advised to seek
are advised to read
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
It also must complete a bank recapitalization.
News & Media
"For China still must complete its W.T.O.
News & Media
Students must complete the following courses.
Academia
However you must complete a new application.
Academia
Graduate students must complete four core courses.
Academia
You must complete your purchase via Ticketmaster.
Academia
Reduced Residency students must complete 900 hours.
Academia
Each student must complete a doctoral dissertation.
Academia
Must complete one of the following courses.
Academia
Each participant must complete a separate application.
Applicants must complete an online application form.
Academia
Expert writing Tips
Best practice
Use "must complete" when conveying a firm requirement or obligation. It's direct and leaves no room for interpretation about whether the action is optional.
Common error
Avoid using "must complete" in casual conversations or informal writing. Opt for alternatives like "need to" or "have to" to maintain a more relaxed tone.
Source & Trust
83%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "must complete" functions as a modal verb construction, expressing obligation or necessity. As Ludwig AI confirms, it indicates a requirement to finish or accomplish a task. The examples provided by Ludwig showcase its use in academic, legal, and general contexts.
Frequent in
Academia
50%
News & Media
43%
Wiki
7%
Less common in
Science
0%
Formal & Business
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "must complete" is a grammatically correct and very common phrase used to express a firm obligation or requirement. As Ludwig AI states, the phrase indicates that something is required to be finished or accomplished. It finds frequent use in academic and news contexts, often conveying rules, regulations, or directives. When aiming for a less formal tone, alternatives like "need to" or "have to" are suitable substitutes. Remember to reserve "must complete" for situations where a strong sense of necessity is intended.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
are required to complete
Emphasizes a formal requirement or obligation.
need to complete
Indicates a necessity to finish something, less formal than "must".
have to complete
Expresses obligation, similar to "must" but slightly more informal.
are obligated to complete
Highlights the binding nature of the completion.
are compelled to complete
Suggests a strong internal or external pressure to finish.
it is essential to complete
Stresses the importance of the completion.
it is imperative to complete
Emphasizes the critical nature of finishing something.
should complete
Suggests a recommendation or expectation to finish, weaker than "must".
are advised to complete
Indicates a suggestion to finish, often for a beneficial outcome.
are expected to complete
Expresses an anticipation or standard that something should be finished.
FAQs
How can I use "must complete" in a sentence?
You can use "must complete" to indicate that something is required. For example, "All students "must complete the assignment" by Friday."
What are some alternatives to "must complete"?
Alternatives include "are required to complete", "need to complete", or "have to complete", depending on the level of formality you want to convey.
Is "must complete" too formal for everyday conversation?
While grammatically correct, "must complete" can sound formal in casual settings. Consider using "need to finish" or "have to do" in informal conversations.
What's the difference between "must complete" and "should complete"?
"Must complete" indicates a strict requirement, while "should complete" suggests a recommendation or expectation. For example, "You must complete the form" implies it's mandatory, whereas "You should complete the form" suggests it's advisable.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.6/5
Expert rating
Real-world application tested