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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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i have established

Grammar usage guide and real-world examples

USAGE SUMMARY

The part of the sentence "I have established" is correct and usable in written English.
You can use it when you have done something to make something exist or become accepted. For example, "I have established a new standard for customer service for this department."

✓ Grammatically correct

News & Media

Science

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

49 human-written examples

I have established customers".

News & Media

The New York Times

"I have established a reputation.

News & Media

The New York Times

That is why I have established our new initiative, Sustainable Energy for All.

News & Media

The New York Times

After much discussion I have established that she is seeing the nurse at 3pm.

News & Media

The Guardian

My husband and I have established ground rules: only one a day.

News & Media

The New York Times

"But unfortunately," he added, "since Martin and I have established our beachheads in New York — so look out, America!

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Human-verified similar examples from authoritative sources

Similar Expressions

9 human-written examples

Now I've established myself on the senior stage".

I've established a strong link with the place.

News & Media

The Economist

"I've established he definitely wasn't George Clooney," he said.

It took 18 months of daily tweeting before I felt I had established my identity.

News & Media

The New York Times

"I had established this identity that I could not maintain," she says.

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Expert writing Tips

Best practice

Use "I have established" when you want to emphasize that you have successfully created, proven, or implemented something, highlighting your role in the action.

Common error

Avoid using "I am establishing" when you actually mean to say that something has already been fully established. "I have established" indicates a completed action with present relevance, while "I am establishing" suggests an ongoing process.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

86%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "I have established" functions as a declarative statement, indicating that the speaker has successfully brought something into existence, proven a point, or set something up. This is supported by Ludwig AI, which indicates correct and usable English. The phrase is commonly used across different contexts as shown in the examples.

Expression frequency: Very common

Frequent in

News & Media

62%

Science

18%

Formal & Business

12%

Less common in

Wiki

4%

Cover Letter

4%

Science Magazine

0%

Ludwig's WRAP-UP

The phrase "I have established" is a versatile and grammatically sound way to communicate that you have successfully created, proven, or implemented something. As Ludwig AI confirms, it is correct and readily usable in written English. It's important to choose the correct verb tense and consider the context when using this phrase. For example, using "I am establishing" suggests an ongoing process, unlike the completed action indicated by "I have established". This phrase appears most frequently in news and media, science, and formal business contexts, highlighting its relevance in various professional and informative settings. Remember to replace it with alternatives like "I have created" or "I have implemented" for more specific connotations.

FAQs

How can I use "I have established" in a sentence?

You can use "I have established" to indicate that you have successfully created, proven, or implemented something, for example, "I have established a new policy." or "I have established a strong reputation."

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

You can use alternatives like "I have created", "I have founded", or "I have implemented" depending on the specific context.

Which is correct, "I have established" or "I had established"?

"I have established" indicates a completed action that has present relevance, while "I had established" refers to an action completed before another point in the past. Choose the tense that best fits the timeline of your narrative.

What's the difference between "I have established" and "I am establishing"?

"I have established" indicates a completed action, whereas "I am establishing" indicates an ongoing process. For instance, "I have established a team" suggests the team is already in place, but "I am establishing a team" means you are currently in the process of forming it.

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Authority and reliability

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Real-world application tested

Most frequent sentences: