i am sure

USAGE SUMMARY

"I am sure" is a grammatically correct and commonly used phrase in written English.
It can be used in various contexts, but its main purpose is to convey a sense of certainty or confidence in what is being said. Example: "I am sure that I turned off the stove before leaving the house this morning."

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

"I am sure".

The New York Times

"I am sure they might".

The New York Times

"I am sure of that".

The New Yorker

I am sure you understand".

Independent

"I am sure of it".

The New York Times

I am sure you do.

The New Yorker

I am sure I would.

Princeton University

Of that I am sure".

The New York Times - Food

I am sure of this.

The Guardian

"I am sure, totally sure".

The New York Times

I am sure I disagree.

The New York Times

Expert writing Tips

Best practice

Use "I am sure" to express confidence or certainty, but avoid overusing it to maintain credibility. Vary your language with alternatives like "I am certain" or "I have no doubt" to keep your writing engaging.

Common error

Avoid starting multiple consecutive sentences with "I am sure." This can make your writing sound repetitive and less impactful. Instead, vary your sentence structure and use synonyms to express certainty.

Linguistic Context

The primary grammatical function of "I am sure" is to serve as a declarative phrase expressing the speaker's confidence or certainty regarding a particular statement or belief. It's commonly used to assert a viewpoint, as shown in Ludwig's examples.

Expression frequency: Very common

Frequent in

News & Media

52%

Academia

24%

Science

18%

Less common in

Formal & Business

6%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, the phrase "I am sure" is a commonly used expression to convey confidence and certainty across various contexts. As Ludwig AI confirms, it is grammatically correct and appears frequently in news, academic writing, and general conversation. While versatile, it's advisable to avoid overuse for stylistic reasons, opting for synonyms like "I am certain" or "I have no doubt" to enhance your writing's impact. Keep in mind that the phrase is more likely to be found in news and media compared to other domains.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

I am certain

Replaces "sure" with "certain", indicating a firm conviction.

I have no doubt

Expresses a lack of uncertainty, similar to being sure.

I am convinced

Indicates a strong belief based on evidence or reasoning.

I truly believe

Emphasizes the sincerity and depth of one's belief.

I am confident

Suggests assurance and self-reliance in one's belief.

It is my belief

Highlights the personal nature of the conviction.

I feel certain

Expresses a feeling of certainty.

I know for a fact

Indicates knowledge based on direct evidence or experience.

Without a doubt

Emphasizes the absence of any uncertainty.

I can guarantee

Indicates a strong assurance or promise.

FAQs

What does "I am sure" mean?

The phrase "I am sure" expresses a state of confidence or certainty about something. It indicates that the speaker or writer believes something to be true or will happen.

How can I use "I am sure" in a sentence?

You can use "I am sure" to express confidence or certainty. For example: "I am sure we can finish this project on time" or "I am sure that it happened".

What are some alternatives to "I am sure"?

You can use alternatives like "I am certain", "I have no doubt", or "I am convinced" depending on the context.

Is it better to say "I am sure" or "I am certain"?

Both "I am sure" and "I am certain" convey a strong belief, but "I am certain" may suggest a slightly higher degree of confidence. The choice depends on the nuance you want to express.