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
had a good command of
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "had a good command of" is correct and usable in written English.
It can be used to describe someone's proficiency or skill in a particular subject or language. Example: "She had a good command of the French language, which helped her during her studies in Paris."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Alternative expressions(4)
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
12 human-written examples
"He had a good command of his instrument.
News & Media
He had a good command of his box on set pieces and against the cross.
News & Media
Mr. Meskini, who came to the United States from Algeria in 1995, had a good command of the English language, as well as American slang, Detective Corrigan said.
News & Media
He had a good command of English to offer, but his real reason for seeking the job was the opportunity it may give him to get to Timbuktu quickly and find the man he called his real father.
News & Media
He had a good command of English, and he studied in Cardiff, Wales, for nine months in 1971, then made four or five trips each to the United States and Britain in the late 1970s.
News & Media
Because he had a good command of French, he worked for the Ministry of Education in the translation office for two years and later translated the works of several major French poets and playwrights.
Encyclopedias
Human-verified similar examples from authoritative sources
Similar Expressions
48 human-written examples
He has a good command of English and is keen to demonstrate it.
News & Media
Winners also need to be resilient, have a good command of the facts and be good in a crisis.
News & Media
Diplomats, tour guides, stylists, supermodels, and so on may be relied on to have a good command of our language.
News & Media
The teacher, Achmad Tontowi, has a good command of grammar and written Chinese but struggles with pronunciation.
News & Media
"It's not a simple exam," says Kanneganti. "You have to have a good command of English".
News & Media
Expert writing Tips
Best practice
When describing language skills, use "had a good command of" to indicate a solid understanding and ability to use the language effectively in both written and spoken forms. For example, "She had a good command of Spanish, allowing her to communicate easily with locals during her travels."
Common error
Avoid using "had a good command of" when the person's skill level is basic or limited. This phrase implies a level of fluency and competence that might be misleading. Use more appropriate phrases like "had a basic understanding of" or "was familiar with" for lower proficiency levels.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "had a good command of" functions as a descriptive phrase, indicating a person's proficiency or expertise in a particular skill or subject. Ludwig shows this usage is common across various contexts.
Frequent in
News & Media
30%
Science
27%
Encyclopedias
13%
Less common in
Wiki
10%
Formal & Business
7%
Academia
3%
Ludwig's WRAP-UP
In summary, "had a good command of" is a versatile phrase to describe proficiency, commonly used across diverse contexts from news to science. As Ludwig AI confirms, this phrase is grammatically correct and frequently employed to indicate a strong level of skill or knowledge. While generally neutral, considering more formal alternatives like "possessed a strong understanding of" can further refine your writing. Avoiding overstatement and tailoring the phrase to accurately reflect skill levels ensures clear and precise communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
had a firm grasp of
Similar in meaning, but "grasp" implies a more intuitive understanding.
was proficient in
Offers a direct and concise way to state someone's competence in a particular area.
was skilled in
Focuses on the skill aspect, suitable when highlighting practical abilities.
possessed a strong understanding of
Replaces "had a good command of" with a more formal tone, emphasizing understanding rather than active control.
was adept at
Highlights natural talent and quickness in learning or performing.
was well-versed in
Emphasizes knowledge gained through study or experience.
had mastery over
Implies a very high level of control and expertise.
demonstrated expertise in
Suggests a higher level of skill and experience than "had a good command of".
excelled at
Indicates a superior level of performance, going beyond mere competence.
knew inside and out
An informal way to express thorough knowledge and familiarity.
FAQs
How can I rephrase "had a good command of"?
Alternatives include "was proficient in", "had a firm grasp of", or "demonstrated expertise in", depending on the specific context and desired level of formality.
Is it appropriate to use "had a good command of" in a formal setting?
Yes, "had a good command of" is suitable for formal settings. However, for even more formal contexts, consider using alternatives such as "possessed a strong understanding of" or "was well-versed in".
What's the difference between "had a good command of" and "was fluent in"?
"Had a good command of" indicates a strong understanding and practical ability, while "was fluent in" implies near-native proficiency with effortless communication. Fluency suggests a higher level of mastery than simply having a good command.
Can "had a good command of" be used for skills other than language?
While commonly used for language proficiency, "had a good command of" can also describe expertise in other areas requiring knowledge and control. For instance, one might say someone "had a good command of the facts" related to a specific subject.
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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested