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CEO of Professional Science Editing for Scientists @ prosciediting.com
I thought for sure
Grammar usage guide and real-world examplesUSAGE SUMMARY
"I thought for sure" is correct and usable in written English.
You can use it to express certainty towards a situation or outcome. For example: "I thought for sure he would win the race, but he came in second place instead."
✓ Grammatically correct
News & Media
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
"I thought for sure.
News & Media
"I thought for sure I was dead".
News & Media
I thought for sure it was bird shit.
News & Media
I thought for sure I was gonna make it".
News & Media
"I thought for sure I was gone to the minors.
News & Media
"I thought for sure I was going to die".
News & Media
I thought for sure I was going to win that.
News & Media
"I thought for sure that he had been hit.
News & Media
I thought for sure they were going to kill him".
News & Media
"Back then I thought for sure: 'This is it.
News & Media
"I thought, for sure, we don't want to wreck together".
News & Media
Expert writing Tips
Best practice
Use "I thought for sure" to convey a sense of surprise or mild disappointment when an expected outcome did not occur. It adds a touch of personal feeling to your writing.
Common error
While "I thought for sure" is perfectly acceptable in many contexts, be mindful of its slightly informal tone. In formal reports or academic papers, consider using more neutral alternatives like "I anticipated" or "I expected".
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "I thought for sure" is to express a past belief or expectation that was held with a high degree of certainty but ultimately proved to be incorrect. It often acts as a parenthetical comment or an introductory phrase to a statement of surprise or disappointment, as confirmed by Ludwig.
Frequent in
News & Media
88%
Science
6%
Formal & Business
3%
Less common in
Academia
1%
Encyclopedias
1%
Wiki
1%
Ludwig's WRAP-UP
In summary, "I thought for sure" is a commonly used phrase to express a past belief held with confidence that turned out to be untrue. Ludwig AI confirms that this phrase is grammatically correct and suitable for various contexts, particularly in news and media. While highly frequent, it's important to consider the formality of your writing and opt for more neutral alternatives like "I expected" or "I anticipated" in formal settings. This phrase effectively conveys surprise or disappointment when expectations are not met.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
I was certain
Emphasizes a strong degree of confidence or conviction about a past event or situation.
I was sure
Expresses confidence in a past expectation but with less intensity than "I was certain".
I fully expected
Indicates a high level of anticipation but focuses more on the expectation itself.
I had no doubt
Highlights the absence of uncertainty regarding a particular outcome.
I anticipated
Similar to "I fully expected" but can also imply a proactive preparation for something.
I had every reason to believe
Emphasizes the justification behind the expectation.
I presumed
Suggests an assumption based on probability but with a degree of uncertainty.
I reckoned
An informal way to say "I thought" or "I supposed", often used in certain dialects.
I took it for granted
Implies that something was assumed without much thought or consideration.
I was under the impression
Suggests a belief that may not have been entirely accurate or well-founded.
FAQs
What does "I thought for sure" mean?
The phrase "I thought for sure" indicates a strong expectation or belief about a particular outcome that ultimately did not happen. It often conveys a sense of surprise or mild disappointment.
What can I say instead of "I thought for sure"?
You can use alternatives such as "I was certain", "I fully expected", or "I had no doubt" depending on the level of formality and emphasis you want to convey.
Is "I thought for sure" grammatically correct?
Yes, "I thought for sure" is grammatically correct and commonly used in spoken and written English, particularly in informal contexts.
How can I use "I thought for sure" in a sentence?
You can use "I thought for sure" to express a past expectation that wasn't met, like in the sentence: "I studied hard for the test, so "I thought for sure" I would get a good grade."
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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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested