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
first is mandatory
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "first is mandatory" is not correct in standard written English.
It seems to be an incomplete thought and lacks clarity in its intended meaning. Example: "In this process, the first step is mandatory for successful completion."
⚠ May contain grammatical issues
Academia
Science
News & Media
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
1 human-written examples
The first is mandatory restrictions on certain types of water use.
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
Briefly, SNOMED codes are based on six axes, of which the two first are mandatory in all records: Topography (T), morphology (M), etiology, function (F), disease (S), and procedure (P).
Science
The first step is mandatory, but the second step is discretionary.
Academia
Notes: Attendance at first class is mandatory.
Academia
Attendance at the first class is mandatory.
Academia
Attendance at first session is mandatory; otherwise, at most one absence is acceptable.
Academia
Attendance at the first class is mandatory in order to participate in service learning.
Academia
Due to capacity restraints in the Binenkorb Lab, attendance at the first class is mandatory; no-show students are dropped to make room for stand-by students.
Academia
Due to capacity restraints in the Binenkorb Lab, attendance at first class is mandatory: no-show students are dropped to make room for waitlisted students.
Academia
Due to capacity restraints in Binenkorb Lab, attendance at first class is mandatory; no-show students are dropped to make room for stand-by students; students may not drop course after second week of class.
Academia
Attendance in first class is mandatory.
Academia
Expert writing Tips
Best practice
When you mean something is required from the beginning, clarify what "first" refers to. For example: "The first step is mandatory."
Common error
Avoid using "first is mandatory" without specifying what the "first" element is. Always complete the sentence with a noun or a noun phrase to avoid ambiguity.
Source & Trust
87%
Authority and reliability
3.2/5
Expert rating
Real-world application tested
Linguistic Context
The phrase functions as an incomplete predicative statement. It suggests a requirement but lacks a specific subject, thus needing completion to convey a clear meaning. Ludwig AI flags it as grammatically incorrect.
Frequent in
Academia
30%
Science
30%
News & Media
20%
Less common in
Formal & Business
10%
Wiki
5%
Encyclopedias
5%
Ludwig's WRAP-UP
The phrase "first is mandatory" is an incomplete construction that needs further context to be grammatically sound. According to Ludwig AI, this phrase is flagged as grammatically incorrect and is more of an incomplete thought. It appears across various domains, including academia, science, and news media, but is rare and requires further clarification to avoid ambiguity. It's essential to specify what the "first" element refers to, such as "the first step", "the first class", or "the first year", to create a clear and meaningful sentence. Therefore, while it appears in different sources, it is more appropriate to specify what "first" is in order to be more clear.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
is mandatory at first
Reverses the word order, shifting focus to the timing of the mandatory aspect.
is initially mandatory
Adds emphasis on the temporal aspect of being mandatory.
initially is mandatory
Modifies the sentence structure emphasizing the initial requirement.
must be mandatory at first
Adds a level of obligation through the addition of the word 'must'.
at first is mandatory
Focuses on the initial stage where compliance is compulsory.
mandatory at the beginning
Rephrases using "at the beginning" instead of "first" but refers to the initial stages of a process.
compulsory at first
Uses the word "compulsory" instead of "mandatory" to provide a different lexical choice.
required at first
Replaces "mandatory" with "required" to lessen the degree of enforcement.
essential initially
Changes to "essential" to indicate necessity, and "initially" to highlight the start.
necessary at the outset
Uses "necessary" instead of "mandatory" to convey the requirement and substitutes "at the outset" for "first".
FAQs
How can I rephrase "first is mandatory" to be grammatically correct?
You can rephrase it as "the first step is mandatory", "attendance at the first class is mandatory", or "the first year is mandatory" depending on the context. Always specify what 'first' refers to.
What does "first is mandatory" mean?
The phrase suggests that an initial element or step is required. However, it's grammatically incomplete and needs context to be clear. For example, "The "first step is mandatory"" implies that the initial action in a process must be done.
Is "first is mandatory" commonly used in formal writing?
No, it is not typically used in formal writing because it is grammatically incomplete. Clearer and more specific phrases like "the "first requirement is"" or "the "initial step is required"" are preferred.
What are some alternatives to "first is mandatory"?
Alternatives include "the "first priority is"", "the "primary requirement is"", or "the "initial action is essential"". The best choice depends on the specific context and the degree of emphasis you want to convey.
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
87%
Authority and reliability
3.2/5
Expert rating
Real-world application tested