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
have been controlled
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "have been controlled" is correct and usable in written English.
It can be used to indicate that something has been managed or regulated over a period of time, often in a passive construction. Example: "The variables in the experiment have been controlled to ensure accurate results."
✓ Grammatically correct
Science
News & Media
Encyclopedias
Alternative expressions(17)
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
Not all events could have been controlled.
Encyclopedias
I witnessed another explosion, but it may have been controlled.
News & Media
Hynix's finances have been controlled by its principal creditor banks for the last year.
News & Media
Blairmore is shown to have been controlled using an obscure financial instrument known as bearer shares.
News & Media
The islands have been controlled for decades by the Soviet Union and then Russia.
News & Media
Carbon quantum dots (CQDs) modified Bi2SiO5 ultrathin nanosheets have been controlled synthetized.
Science
These challenges have been controlled with in-feed prophylactic antibiotics and dietary minerals.
"We feel like we have been controlled by events and haven't controlled them," said one rank-and-file employee.
News & Media
If all went according to plan, the return to Earth will have been controlled automatically by the craft's computer.
News & Media
For the last two years, all of ABC's prime-time newsmagazines have been controlled by Victor Neufeld.
News & Media
One way out would be to abandon the goal of universal coverage until after costs have been controlled.
News & Media
Expert writing Tips
Best practice
When using "have been controlled", ensure that the subject clearly identifies what is being managed or regulated. For instance, specify what measures or systems are in place.
Common error
Avoid ambiguity by ensuring the agent of control is either clearly stated or strongly implied. Overuse of the passive voice with "have been controlled" can obscure who or what is exerting the control, weakening the clarity of your writing.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "have been controlled" functions as a passive perfect construction. It indicates that an action of controlling or regulating has been completed at some point in the past and its effects may still be relevant. As Ludwig AI shows, it is frequently used to describe situations where processes, phenomena, or entities are managed or kept within certain limits.
Frequent in
Science
33%
News & Media
31%
Encyclopedias
5%
Less common in
Academia
5%
Wiki
5%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, the phrase "have been controlled" is a grammatically sound and commonly used passive perfect construction. It indicates that an action of controlling or regulating has been completed in the past. As Ludwig AI confirms, it is prevalent in various contexts, including science, news, and encyclopedias, and serves the purpose of conveying that a state of regulation or management has been achieved. To ensure clarity, explicitly state or imply the agent of control. Consider alternatives such as "were regulated" or "were managed" to add nuance to your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
were regulated
Focuses on the imposition of rules or laws to govern something, emphasizing external oversight.
were managed
Emphasizes the act of overseeing and directing resources or activities, shifting the focus to administration.
were handled
Highlights the manner in which something was dealt with or treated, implying a specific approach or method.
were supervised
Stresses the act of overseeing and directing activities, often implying a hierarchical relationship.
were governed
Focuses on the system or principles by which something is ruled or directed, emphasizing authority and structure.
were directed
Highlights the guidance and channeling of efforts or resources towards a specific goal or outcome.
were influenced
Indicates that something was affected or swayed by external factors, implying a less direct form of control.
were determined
Focuses on the establishment or ascertainment of something, emphasizing the outcome of a process.
were contained
Emphasizes the act of keeping something within limits or boundaries, often used in the context of preventing spread or escalation.
were suppressed
Highlights the act of forcibly preventing something from developing or being expressed, implying a more forceful form of control.
FAQs
How can I use "have been controlled" in a sentence?
Use "have been controlled" to indicate that something has been managed, regulated, or influenced over a period. For example: "The spread of the disease may "have been controlled" by quarantine measures."
What are some alternatives to "have been controlled"?
Depending on the context, you can use alternatives like "were regulated", "were managed", or "were supervised". Each alternative carries a slightly different nuance.
Is it better to use active or passive voice with "have been controlled"?
While both active and passive voice are grammatically correct, passive voice is more common with "have been controlled". However, ensure clarity by explicitly stating or implying the agent of control to avoid ambiguity.
Which is more formal: "have been controlled" or "were influenced"?
"Have been controlled" and "were influenced" can both be used in formal contexts, but "have been controlled" suggests a more direct and deliberate management, while "were influenced" implies a more subtle and indirect impact.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested