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
which are additional
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "which are additional" is correct and usable in written English.
It can be used to specify or clarify that certain items or points being discussed are extra or supplementary to what has already been mentioned. Example: "The report includes several key findings, which are additional to the data presented in the previous study."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(2)
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
22 human-written examples
In addition to heading the Finance Ministry, the 76 year-old runs a staggering 13 of India's 27 Groups of Ministers, special decision-making groups set up to consider policy on difficult issues, and all 12 of the Empowered Groups of Ministers, which are additional ministerial working groups.
News & Media
This additional revenue mainly comes from "presence and business applications," which are additional services they offer to small businesses — think SEO optimization, online marketing and even online bookkeeping.
News & Media
The latter phenomenon is shown to be responsible for significant grain rotations, which are additional to those predicted by the conventional methods of crystal plasticity.
Science
Notes were taken during and after the interview with no audio or video recording, which are additional methods recommended for cognitive testing [16].
According to the SIMP model for TO problems, the mechanical properties of the reinforcing layers are assumed to depend locally on the densities of the material in the layers, which are additional design variables.
Retrospective application of penalties leaves the institution open to appeals and public enquiries about standards and processes, all of which are additional burdens in terms of time, resources, and reputation.
Human-verified similar examples from authoritative sources
Similar Expressions
37 human-written examples
Of those surveyed, 84% of head teachers said their extended services were used by a mix of more and less advantaged families, but 10% said their services were used disproportionately by better-off families even though the services are usually part-funded by the pupil premium, which is additional money for schools to raise attainment among disadvantaged pupils.
News & Media
Some of these methods generate toxic sludge, which is additional burden on the techno-economic feasibility of treatment procedures (Kratochvil and Velosky 1998).
Science
The urea spray at maturity of the standing pigeonpea crop significantly improved this contribution in increasing wheat yield, the effect of which was additional to the amount of urea used for inducing defoliation.
Science
As said earlier, the results with reading or math scores as dependent variables instead of scientific literacy are substantially the same, which is additional evidence that characteristics of educational systems are relevant for educational outcomes.
Hence, the shielding effect results in an attenuation of the electromagnetic wave power received by the radar which is additional to that caused by the antenna parameters, distance between the antenna system and target, radar cross-sections and etc.
Expert writing Tips
Best practice
Use "which are additional" to clearly indicate that the information you're presenting is supplementary to what has already been discussed. This helps avoid confusion and ensures clarity.
Common error
Avoid using 'that' when 'which' is more appropriate. 'Which' introduces non-restrictive clauses (providing additional, non-essential information), while 'that' introduces restrictive clauses (essential to the sentence's meaning). For example, instead of 'The features that are additional are...', use 'The features, which are additional, are...'.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "which are additional" functions as a non-restrictive relative clause, providing supplementary information about a previously mentioned noun or concept. Ludwig's examples showcase its role in adding details, specifications, or further characteristics.
Frequent in
Science
61%
News & Media
26%
Formal & Business
7%
Less common in
Wiki
4%
Academia
2%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "which are additional" is a grammatically correct and commonly used phrase to introduce non-essential, supplementary information. As Ludwig AI confirms, it follows standard English grammar rules. It's frequently seen in science-related contexts, news, and formal writing. When using the phrase, be mindful to use 'which' instead of 'that' to properly signal non-restrictive information. For alternatives, consider "that are supplementary" or "that are extra" depending on your desired level of formality. Always aim for clarity and precision when using this phrase to enhance your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that are supplementary
Emphasizes the supporting or complementing nature of the information.
which are supplementary to
Explicitly states that the information complements something else.
that are extra
A more informal way to indicate something is added or beyond what is expected.
that further elaborate
Focuses on the detailed and expanded nature of the new information.
which provide more detail
Highlights the descriptive nature of the added information.
that are also included
Emphasizes the inclusion of something new within a set.
that add to this
A simple way of showing that something is being joined to the existing information.
which serve as further
Highlights the function of providing extra support or evidence.
which represent an addition
Formally notes that something is being added.
that are incremental
Highlights that this represents an increase or a gain.
FAQs
How can I use "which are additional" in a sentence?
The phrase "which are additional" is used to add extra, non-essential information to a sentence. For example: "The report includes several key findings, "which are additional" to the data presented in the previous study".
What's the difference between "which are additional" and "that are additional"?
"Which are additional" introduces a non-restrictive clause, providing extra information that isn't essential to the sentence's core meaning. "That are additional" would introduce a restrictive clause, implying the additional items are essential for identifying something specifically. Usually, "which" is preceded by a comma.
What can I say instead of "which are additional"?
You can use alternatives like "that are supplementary", "that are extra", or "which provide more detail" depending on the context.
Is "which are additional" formal or informal?
The phrase "which are additional" tends to be more formal, often used in academic writing, reports, and professional communications. Less formal options might include "that are also included" or "that add to this".
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
4.5/5
Expert rating
Real-world application tested