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
when suitable
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "when suitable" is grammatically correct and can be used in written English.
It means "at a convenient or appropriate time." Example: When suitable, please email me the report so I can review it before our meeting tomorrow.
✓ Grammatically correct
Science
News & Media
Encyclopedias
Alternative expressions(20)
is equivalent to
in the wishes of
rapidly thereafter
for the immediate future
Very soon
somewhere later
one week before
at the early time
in the next weeks
it is important to remember
during the previous years
to avoid disruption
not yet completed
in accordance with direction from
a couple of books before
if not soon
as excellent as
in a flash
as instructed by the directive
as tall as
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
when suitable solvent is used.
Science
"We will be ready when suitable targets have been identified," Brigadier Lane said last weekend.
News & Media
The dust is formed when suitable molecules cool and combine with each other.
News & Media
When suitable electric generators became available in the late 1870s, the practical use of arc lamps began.
Encyclopedias
HPMC readily formed a film-coat on silicon when suitable spray coating parameter settings were determined.
"It would not be possible on all people but, when suitable, it is a medium-term solution which buys us time when looking for a transplant.
News & Media
Within paddock variability, such as differential grazing distribution, can be readily incorporated as weighting factors when suitable models are developed.
Science
These results show that writing features are useful for evaluating cognitive load when suitable classifiers are adopted.
However, separation by causal mechanism prior to analysis should always be the preferred option when suitable data records are available.
Such learning often involves visual cues as well as chemical cues and increases foraging efficiency, minimizing time spent on fruitless searching when suitable resources are abundant.
Encyclopedias
Normally, one response pattern is dominant and the other latent but capable of being called into action when suitable circumstances occur.
Encyclopedias
Expert writing Tips
Best practice
Use "when suitable" to introduce a condition or timing element in your writing, specifying that an action or decision should only occur under appropriate circumstances. This adds precision and avoids assumptions about universal applicability.
Common error
Avoid relying too heavily on "when suitable" in highly formal or legal writing. While grammatically sound, it can sometimes sound vague. Consider specifying the conditions more precisely for clarity.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "when suitable" functions as an adverbial clause of condition, modifying a verb or clause by specifying the circumstances under which the action is appropriate or permissible. Ludwig AI validates its grammatical correctness and wide applicability.
Frequent in
Science
59%
News & Media
18%
Encyclopedias
7%
Less common in
Wiki
5%
Formal & Business
2%
Reference
0%
Ludwig's WRAP-UP
In summary, "when suitable" is a grammatically correct and versatile phrase functioning as an adverbial clause of condition. It conveys that an action or decision should be taken only under appropriate or convenient circumstances. Ludwig AI shows that it is most commonly used in scientific and news contexts, with a neutral formality level making it appropriate for a wide range of communications. Related phrases include "when appropriate" and "if necessary", each providing subtle differences in meaning.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
when appropriate
Indicates a situation where something is fitting or relevant, shifting focus to relevance over convenience.
when convenient
Emphasizes ease and practicality, focusing on timing that causes the least disruption.
when feasible
Highlights the achievability or practicality of something within given constraints.
if appropriate
Highlights a conditional aspect, implying that something should only occur if it meets certain criteria.
if necessary
Stresses the importance of something only being done when there's a clear need.
as applicable
Used to indicate that something only applies in certain situations.
at the right time
Focuses specifically on timing, suggesting that the timing is crucial for success or effectiveness.
under the right circumstances
Highlights that external conditions need to be correct or favorable.
when conditions allow
Similar to 'under the right circumstances' but places more emphasis on environmental or external factors.
when deemed fit
Focuses on a judgment call, suggesting that someone in authority will decide when it is suitable.
FAQs
How can I use "when suitable" in a sentence?
Use "when suitable" to indicate that an action or decision should be taken only under appropriate or convenient circumstances. For example: "Please submit your application "when suitable"."
What's a more formal alternative to "when suitable"?
In formal contexts, consider using phrases like "when appropriate" or "under the right circumstances" for a more precise and professional tone.
Is there a difference between "when suitable" and "if necessary"?
"When suitable" implies convenience or appropriateness, whereas "if necessary" suggests something should only be done when there is a clear need. They are not interchangeable.
Can I use "when suitable" at the beginning of a sentence?
Yes, "when suitable" can start a sentence to introduce a conditional clause. For example: "When suitable, the changes will be implemented."
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