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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
i think that
Grammar usage guide and real-world examplesUSAGE SUMMARY
'I think that' is correct and usable in written English.
You can use it when you want to express your opinion or a belief. For example, "I think that this new policy will be beneficial for the company."
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
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
Do I think that?
News & Media
I think that compares favourably.
News & Media
So I think that helps.
News & Media
I think that scares us.
News & Media
I think that was true.
News & Media
I think that was tough".
News & Media
I think that was wrong.
News & Media
I think that was key".
News & Media
I think that was right.
News & Media
I think that is right".
News & Media
"I think that was it.
News & Media
Expert writing Tips
Best practice
Use "I think that" to clearly signal your own viewpoint, especially when presenting potentially subjective information or analysis.
Common error
Avoid starting too many sentences with "I think that", as it can make your writing sound repetitive and less confident. Vary your sentence structure by occasionally omitting the phrase when the subjective nature is already clear, or using alternatives like "in my opinion".
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "I think that" functions as a discourse marker, explicitly signaling the introduction of a personal opinion, belief, or assessment. Ludwig shows it's widely used to frame statements as subjective perspectives.
Frequent in
News & Media
44%
Science
28%
Formal & Business
10%
Less common in
Wiki
6%
Reference
6%
Academia
6%
Ludwig's WRAP-UP
In summary, "I think that" is a versatile phrase used to introduce personal opinions or beliefs. As shown by Ludwig, it's grammatically correct and very common in both written and spoken English. While it's suitable for many contexts, varying your language with alternatives like "in my opinion" can improve writing style. According to Ludwig AI, the phrase is acceptable and widely used, particularly in news media and scientific writing. Use it to clearly signal your viewpoint, but avoid overuse to maintain a confident and engaging tone.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
I believe that
Emphasizes a stronger conviction or certainty compared to a simple thought.
In my opinion
Explicitly states that the following statement is a personal viewpoint.
I consider that
Suggests a more thoughtful evaluation has taken place.
It seems to me that
Introduces a sense of personal perception or impression.
As far as I'm concerned
Highlights the speaker's personal stance on a matter.
I assume that
Indicates a supposition based on limited evidence.
From my perspective
Frames the statement as a viewpoint influenced by personal experience.
My understanding is that
Indicates the speaker's current grasp of a situation or concept.
I gather that
Suggests that the speaker has inferred something from available information.
I'm of the opinion that
A more formal way of expressing a personal belief.
FAQs
How can I use "I think that" effectively in a sentence?
Use "I think that" to introduce your opinion or belief, but ensure the statement is clear and supported by evidence or reasoning within the context of your writing or conversation. Avoid overuse to maintain a confident tone.
What are some alternatives to "I think that" to add variety to my writing?
You can use alternatives such as "I believe that", "in my opinion", or "it seems to me that" depending on the context and desired level of formality.
Is it always necessary to use "that" after "I think"?
While grammatically correct, the "that" after "I think" is often omitted in informal speech and writing. Whether to include it depends on the desired level of formality and clarity. However, it is generally safe to omit it, unless it causes confusion.
How does "I think that" differ from "I know that"?
"I think that" indicates a belief or opinion, while "I know that" suggests a higher degree of certainty based on evidence or experience. Choose the phrase that accurately reflects the strength of your conviction.
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested