I previously understood

USAGE SUMMARY

The phrase "I previously understood" is correct and usable in written English.
You can use it when referring to a past comprehension or awareness of a topic or situation that may have changed or been clarified since then. Example: "After reviewing the new information, I realize that I previously understood the concept incorrectly."

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

1 human-written examples

I previously understood that in a figurative sense, and that his head had been chopped off.

BBC

Human-verified similar examples from authoritative sources

Similar Expressions

59 human-written examples

But an experience I did have made me realise something I hadn't previously understood: how the simple matter of words in thin air can severely damage someone, if the words are sufficiently ill judged and the person particularly vulnerable.

The Guardian - Opinion

"I am so encouraged that there is an opportunity to bring dollars to the district faster than was previously understood," Garcia said.

Los Angeles Times

Some natural variability not previously understood?

The Washington Post

Genentech said it had previously understood that the F.D.A. would not require such data.

The New York Times

This suggests that the number of false convictions is higher than previously understood.

The New York Times

The Severn Project has annual revenues of £115,000, not £350,000 as previously understood.

The Guardian

So you can have feedbacks that are subtler than what we previously understood.

Columbia University

The location of where the drives were manufactured was not previously understood by the downstream value chain.

The Guardian

This calculation seemed to prove that Williams was even more superhuman an athlete than was previously understood.

The New Yorker

"The government surveillance programs conducted under the Foreign Intelligence Surveillance Act are far broader than the American people previously understood," said Leahy.

The Guardian

Expert writing Tips

Best practice

Use "I previously understood" to clearly indicate a shift in your comprehension, especially when presenting new information that contradicts your earlier knowledge. This helps establish transparency and intellectual honesty.

Common error

Avoid using "I previously understood" if you never actually understood the concept. Ensure that you genuinely held a different understanding before the new information came to light; otherwise, it can sound pretentious or misleading.

Linguistic Context

The phrase "I previously understood" functions as a declarative statement expressing a past state of comprehension that has since changed. As Ludwig AI indicates, it's grammatically correct and is used to introduce a revised understanding of a topic. In essence, it serves as a bridge connecting a past perspective with a current one.

Expression frequency: Very common

Frequent in

News & Media

35%

Academia

30%

Science

20%

Less common in

Formal & Business

5%

Encyclopedias

5%

Wiki

0%

Ludwig's WRAP-UP

In summary, "I previously understood" is a grammatically correct and versatile phrase used to indicate a shift in understanding. As Ludwig AI confirms, it is a valid expression in written English. It commonly appears in news articles, academic papers, and professional communications. While not overly formal, it maintains a level of professionalism suitable for various contexts. When using this phrase, ensure you genuinely held a different understanding before, and be prepared to articulate the new understanding. Related phrases include "I used to think" and "It was previously my understanding that", offering alternatives depending on the desired tone and emphasis.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

I used to understand

This alternative replaces "previously" with "used to", focusing on the past state of understanding.

It was previously my understanding

This shifts the emphasis slightly, making the understanding itself the subject.

I formerly understood

Similar to "previously understood" but uses "formerly" for a slightly more formal tone.

I once thought

This alternative conveys a past belief that has since changed or been corrected.

I had believed

Emphasizes a former belief that is no longer held.

My earlier understanding was

This version rephrases the sentence to focus on the state of understanding rather than the act of understanding.

I had assumed

Indicates that the previous understanding was an assumption, not necessarily based on solid evidence.

I was under the impression that

This phrase indicates that one's previous understanding was based on an impression, which may have been inaccurate.

I mistakenly believed

This alternative highlights that the previous understanding was incorrect.

I was formerly of the opinion that

A more formal and elaborate way of saying "I once thought".

FAQs

How can I use "I previously understood" in a sentence?

You can use "I previously understood" to show a change in your understanding. For example: "I previously understood the project deadline to be Friday, but I now realize it's Thursday."

What's a more formal alternative to "I previously understood"?

A more formal alternative is "It was previously my understanding that". This construction adds a layer of formality suitable for professional or academic writing.

Is it okay to use "I previously understood" in academic writing?

Yes, it's perfectly acceptable to use "I previously understood" in academic writing. It demonstrates intellectual honesty by acknowledging how your understanding has evolved.

What can I say instead of "I previously understood" to sound less formal?

You could use phrases like "I used to think" or "I once thought" as less formal alternatives to "I previously understood".