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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
were convinced that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "were convinced that" is correct and usable in written English.
It can be used when expressing a strong belief or certainty about something in the past. Example: "They were convinced that their decision was the right one, despite the challenges they faced."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Alternative expressions(5)
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
59 human-written examples
Experts were convinced that crime would keep rising.
News & Media
But investigators were convinced that more jewels were hidden away.
News & Media
Eventually they were convinced that the abduction was for real.
News & Media
Others were convinced that it was a whaling ship.
News & Media
They were convinced that the Aga Khan would pay up.
News & Media
They were convinced that they could engineer a better system.
News & Media
We were convinced that our case was just.
News & Media
But some commuters were convinced that a conspiracy was afoot.
News & Media
Their parents were convinced that they were dying.
News & Media
They were convinced that a demonstration would precipitate surrender.
News & Media
Every time we hung up, we were convinced that we had resolved the issue.
News & Media
Expert writing Tips
Best practice
Consider using alternative phrases such as "were certain that" or "firmly believed that" to add variety to your writing and avoid repetition.
Common error
Avoid using "were convinced that" when the evidence only suggests a possibility or likelihood. Reserve it for situations where there's a strong basis for the belief.
Source & Trust
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "were convinced that" functions as a declarative expression, indicating a past state of strong belief or certainty. As shown in the Ludwig examples, this construction frequently introduces a clause stating the content of the conviction.
Frequent in
News & Media
73%
Science
18%
Encyclopedias
4%
Less common in
Wiki
3%
Formal & Business
2%
Social Media
0%
Ludwig's WRAP-UP
In summary, "were convinced that" is a phrase used to express a strong belief or certainty held in the past. According to Ludwig, it is grammatically correct and widely used across various contexts, particularly in news, science, and encyclopedic sources. While the phrase is considered neutral to formal, remember to use it when the belief is based on solid grounds and not just a possibility. As Ludwig AI confirms, this phrase effectively conveys a past state of firm conviction.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
were certain that
Replaces "convinced" with "certain", indicating a strong degree of sureness or confidence.
were sure that
Substitutes "convinced" with "sure", suggesting a confident belief, though potentially slightly less forceful.
were persuaded that
Emphasizes the influence of external factors in forming the belief, implying that someone or something caused them to believe it.
firmly believed that
Replaces "were convinced" with "firmly believed", stressing the strength and conviction of the belief.
were of the opinion that
Indicates a formal expression of belief or judgment, suitable for professional contexts.
held the belief that
Highlights the act of holding a specific belief, framing it as a held position or viewpoint.
were under the impression that
Suggests a belief based on incomplete or potentially inaccurate information.
were led to believe that
Indicates that external influences or misleading information caused them to form the belief.
were under the assumption that
Implies a belief taken for granted without necessarily having solid evidence.
had no doubt that
Emphasizes the absence of uncertainty or questioning regarding the belief.
FAQs
What does "were convinced that" mean?
The phrase "were convinced that" indicates a strong belief or certainty about something in the past. It implies that someone or a group of people held a firm conviction regarding a particular fact or idea.
How can I use "were convinced that" in a sentence?
You can use "were convinced that" to express a past belief. For example, "The experts "were convinced that" crime would keep rising."
What are some alternatives to "were convinced that"?
Alternatives include "were certain that", "firmly believed that", or "were persuaded that", depending on the specific nuance you wish to convey.
Is there a difference between "were convinced that" and "believed that"?
While both express belief, "were convinced that" suggests a stronger level of certainty than simply "believed that". The former implies a firm and unwavering conviction, while the latter can indicate a more tentative or less substantiated belief.
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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
4.6/5
Expert rating
Real-world application tested