i have demonstrated

USAGE SUMMARY

The phrase "I have demonstrated" is correct and usable in written English.
You can use it when you want to indicate that you have shown or proven something through evidence or examples in the past. Example: "In my previous presentations, I have demonstrated the effectiveness of our new marketing strategy."

✓ Grammatically correct

News & Media

Science

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

52 human-written examples

Over the past 10 years, my colleagues and I have demonstrated that such monitoring is possible.

The New York Times

"Look, I have demonstrated many, many times that I am a super math brain.

The New Yorker

As I have demonstrated, we don't even compete with developed countries.

The Guardian

"I am innocent, and I have demonstrated it with the facts," he said.

The New York Times

"We have to have principled, conservative leadership, and I have demonstrated that through my life".

The New York Times

"I think that Josh and I have demonstrated that we know what a good page-turner looks like.

The New York Times

Human-verified similar examples from authoritative sources

Similar Expressions

8 human-written examples

Self-assembling peptides, especially RADA16-I, have demonstrated to be highly effective in generating hemostasis in vivo when applied as a solution.

ACS Nano

In our study, also uCTX-I has demonstrated itself interesting.

Journal of Orthopaedics and Traumatology

I've demonstrated that again today.

Independent

"But I've demonstrated I would have lived out my first term, anyway," he said.

The New York Times

I've demonstrated this time and time again, oftentimes to the consternation of my own party.

The New York Times

Expert writing Tips

Best practice

When writing formally, follow "I have demonstrated" with specific examples or data to strengthen your argument.

Common error

Avoid using "I have demonstrated" in casual conversation or informal writing, as it can sound overly formal or pretentious. Opt for simpler alternatives like "I've shown" or "I've proved".

Linguistic Context

The phrase "I have demonstrated" serves as a performative statement, asserting that the speaker has provided evidence or proof of something. Ludwig shows many examples in which speakers use it to claim their knowledge, skills, or achievements.

Expression frequency: Very common

Frequent in

News & Media

35%

Science

33%

Formal & Business

17%

Less common in

Science

5%

News & Media

5%

Formal & Business

5%

Ludwig's WRAP-UP

In summary, the phrase "I have demonstrated" is a grammatically correct and commonly used expression to indicate that the speaker has provided evidence or proof. According to Ludwig, its formality makes it suitable for professional and academic writing but less appropriate for casual conversation. The phrase appears frequently in news, scientific, and business contexts. Related phrases include "I have shown" and "I have proven", which offer variations in tone and emphasis.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

I have shown

Replaces "demonstrated" with a simpler synonym, reducing formality.

I have proven

Emphasizes the conclusive nature of the evidence, suggesting a more definitive proof.

I have established

Highlights the act of setting something firmly in place through demonstration.

I have illustrated

Suggests providing examples or visual aids to clarify a point.

I have validated

Indicates that something has been confirmed or supported by evidence.

I have confirmed

Highlights the act of verifying or establishing the truth of something previously uncertain.

I have verified

Focuses on checking the accuracy or truth of something, often through investigation.

I have substantiated

Implies providing evidence to support or prove the truth of a claim.

I have determined

Focuses on the process of reaching a conclusion through investigation or reasoning.

I have evidenced

Highlights that proof or evidence has been given, although the word 'evidenced' is less frequently used.

FAQs

What can I say instead of "I have demonstrated"?

You can use alternatives like "I have shown", "I have proven", or "I have illustrated" depending on the context.

How do I use "I have demonstrated" in a sentence?

The phrase "I have demonstrated" is typically followed by what you have proven or shown. For example, "I have demonstrated the effectiveness of the new strategy."

Is it better to use "I have shown" or "I have demonstrated"?

"I have demonstrated" is more formal and emphasizes providing solid proof. "I have shown" is less formal and can mean simply indicating something. The best choice depends on the context and desired tone.

What's the difference between "I have demonstrated" and "I demonstrated"?

"I have demonstrated" (present perfect) implies the demonstration has relevance to the present. "I demonstrated" (simple past) refers to a completed action in the past without necessarily linking it to the present.