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
was restricted with
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "was restricted with" is not correct in standard written English.
It is typically used incorrectly; the correct preposition should be "to" or "by" instead of "with." Example: "The access to the building was restricted to authorized personnel only."
⚠ May contain grammatical issues
Science
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 DNA in agarose plugs was restricted with 40 U/plug-slice of XbaI restriction enzyme (Roche, Indianapolis, IN), following the manufacturer's recommendations.
Science
In order to reduce the transgene fragment size for ideal transgenic mouse production, the N3-PTTG was restricted with Ase I and Afl II restriction enzymes, resulting in the transgene fragment CMV-PTTG-EGFP.
Science
The spliced product was restricted with NdeI and XhoI (New England Biolabs) and cloned into restricted pET15b that had been dephosphorylated with Antarctic Phosphatase (New England Biolabs), using Fastlink ligase (Epicentre).
The head motion was restricted with foam padding around the head and the noise of the scanner was attenuated with earplugs.
Genomic DNA was restricted with Sau3AI.
Science
For inverse PCR 1 µg of total DNA was restricted with EcoRI, ApaI, or KpnII overnight.
Science
The product was restricted with XhoI/AvrII, and inserted into similarily digested pARL2-GFP [15].
Science
The PCR fragment obtained was restricted with Bbv I (New England BioLabs, Beverly, Mass., US) at 37°C.
Science
Amplified cDNA was restricted with the BstU1 endonuclease and purified with Qiaquick PCR purification kit to remove UP1 and UP2 anchor sequences (Figure S1 Materials).
Science
The C3.1 vector containing a CaMV35S promoter and a RbcS1 terminator, was restricted with BamHI and NotI and the oligo-dimer was ligated into the vector.
Science
Eight micrograms seedling leaf DNA from individual plants was restricted with SspI and ScaI and purified with phenol-chloroform before treating with sodium bisulfite [49], [56].
Science
Expert writing Tips
Best practice
When describing limitations, use precise prepositions like "to" or "by" instead of "with" to ensure grammatical correctness. For instance, say "access was restricted to authorized personnel" instead of "access was restricted with authorized personnel."
Common error
Avoid using "with" after "restricted"; it's grammatically incorrect. Common mistakes include sentences like "movement was restricted with a brace". Correct it to "movement was restricted by a brace" or "movement was restricted to certain actions".
Source & Trust
82%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "was restricted with" functions as a passive verb phrase, indicating a state of limitation or constraint. While commonly found, especially in scientific writing as shown by Ludwig, it often reflects non-standard usage. The preposition "with" is generally considered incorrect in this context.
Frequent in
Science
100%
Less common in
News & Media
0%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, while the phrase "was restricted with" is commonly used, particularly in scientific literature, it is generally considered grammatically incorrect. The correct usage involves prepositions like "to" or "by". Ludwig AI analysis shows it's best to opt for alternatives such as "was limited to" or "was confined to" to maintain grammatical accuracy and clarity. Although prevalent, adhering to correct prepositional usage enhances the credibility and precision of your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
was limited to
Replaces "restricted with" to focus on the scope of the limitation.
was confined to
Emphasizes the boundaries or enclosure imposed by the restriction.
was bounded by
Highlights the limits or boundaries defining the restriction.
was subjected to
Shifts the focus to the entity experiencing the restriction.
was governed by
Suggests that the restriction is imposed by a rule or law.
was controlled by
Indicates an external force or mechanism imposing the restriction.
was narrowed to
Highlights the act of reducing the scope or possibilities.
was curtailed by
Implies a reduction or shortening due to the restriction.
was regulated by
Suggests a formal or systematic control over the restriction.
was restrained by
Emphasizes the act of holding back or preventing free movement.
FAQs
What is the correct preposition to use after "was restricted"?
The correct prepositions to use after "was restricted" are "to" or "by", depending on the context. For example, "access was restricted to members only" or "the spread was restricted by the new regulations".
How can I rephrase a sentence that uses "was restricted with" to be grammatically correct?
You can replace "was restricted with" with alternatives such as "was limited to", "was confined to", or "was bounded by", depending on the intended meaning.
Is it ever correct to use "was restricted with" in a sentence?
No, it is generally not considered grammatically correct to use "was restricted with". The correct prepositions are typically "to" or "by".
What's the difference between "was restricted to" and "was restricted by"?
"Was restricted to" indicates a limitation to a specific scope or group, such as "the event was restricted to invited guests". "Was restricted by" indicates a limitation imposed by a cause or condition, such as "the experiment was restricted by budget constraints".
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
2.8/5
Expert rating
Real-world application tested