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
pre due
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "pre due" is not grammatically correct or commonly used in written English.
It is likely a mistaken combination of the prefix "pre-" (meaning before) and the word "due" (meaning required or expected). A more grammatically correct and commonly used phrase would be "prior to the due date." Example: "Please submit your assignment prior to the due date to avoid any late penalties."
⚠ May contain grammatical issues
Science
News & Media
Academia
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
2 human-written examples
For one subject (code 28), the examiner was different at PRE due to organizational limitations.
Science
Ligands not binding at the desired site experience weak PRE due to binding far from the spin-label and thus can be easily discarded.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
It was suggested that the acid sites of Al-MCM-41-Post be more accessible than those of Al-MCM-Pre due to different aluminum distribution within the pore wall.
Science
The diminishing influence of diffusion control with increasing cd may be caused by suppression of the anode reaction within pres due to blocking by anode gas.
Science
"The procedures that are being adopted are taking us back to pre-Magna Carta, pre-due-process procedures".
News & Media
He's impressed with Palm's new Pre smartphone, due out from Sprint Nextel in June.
News & Media
Recently, PRE effects due to Gd DTPA-BMA) were used to probe the immersion depth and orientation of an anti-microbial peptide [33], [34].
Science
This lower limit 1−1/R 0 pre is due to forwards tracing, when all infecteds that are traceable via their infector, are quarantined before the end of their latent period.
Science
These results were probably attributed to low abundance of pre-miRNAs and difficulties in polyadenylation of pre-miRNA due to the presence of the stem loop structure [ 31].
Pre-proposals due Thursday, November 12, 2015 at 12pm.
The pre-stresses due to the thermal and mechanical loadings are obtained by exact solution of the equilibrium equations.
Science
Expert writing Tips
Best practice
Avoid using the phrase "pre due" in formal writing. Opt for more grammatically correct alternatives like "prior to the deadline" or "before it is due".
Common error
The prefix "pre-" is often misused. Ensure that when using "pre-", it's attached to a word that appropriately conveys "before," such as "pre-test" or "pre-season", and not combined haphazardly with other words.
Source & Trust
82%
Authority and reliability
2.2/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "pre due" functions as an attempt to indicate something happening or being required before a specific deadline. However, this phrase is grammatically incorrect. Ludwig AI identifies it as an error and suggests more appropriate alternatives.
Frequent in
Science
33%
News & Media
33%
Academia
33%
Less common in
Formal & Business
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "pre due" is flagged by Ludwig AI as grammatically incorrect. It attempts to convey something related to a period or action before a deadline, but the construction is not standard English. Instead, alternatives like "prior to the deadline" or "before it is due" are recommended. Using correct grammar ensures clarity and professionalism in writing. While authoritative sources may occasionally use it, it's best to avoid "pre due" in favor of more conventional phrasing. When using the prefix "pre-", ensure it appropriately modifies a noun, such as in "pre-submission".
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
prior to the deadline
Replaces "pre" with "prior to" for grammatical correctness, emphasizing the time before a specific deadline.
before it is due
Uses a more common and grammatically sound construction to indicate something happening before the due date.
ahead of schedule
Focuses on completing a task earlier than expected, a common implication when discussing deadlines.
in advance of the due date
Formally expresses the concept of doing something before the specified date.
preliminary to the due date
Highlights actions or steps taken as preparation before the due date.
preparatory to the deadline
Similar to 'preliminary', this emphasizes the preparation aspect related to a deadline.
pre-deadline
Uses "pre-" as a prefix to modify 'deadline', although this construction can still sound awkward.
before the expected time
Generalizes the concept of completing something before the anticipated timeframe.
in anticipation of the deadline
Shifts the focus to the expectation and planning surrounding the approaching deadline.
leading up to the deadline
Highlights the period and activities occurring before the deadline.
FAQs
What does "prior to the due date" mean?
It indicates that something must be done or submitted before the established date. It is similar to saying "before it is due".
Is there a correct way to use 'pre' with deadlines?
While "pre due" is incorrect, using "pre-" as a prefix can be valid if it modifies a noun directly related to the deadline, such as "pre-submission checklist".
What are some formal alternatives to "pre due"?
For formal writing, consider phrases like "in advance of the due date" or "prior to the deadline".
When is it appropriate to use a 'pre-' prefix?
Use 'pre-' when it logically precedes and modifies a noun, like "pre-test", indicating something done before the test. Avoid using it with verbs or in awkward combinations like "pre due".
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
82%
Authority and reliability
2.2/5
Expert rating
Real-world application tested