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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
would have observed
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "would have observed" is correct and usable in written English.
It is typically used to express a hypothetical situation in the past, indicating what someone might have seen or noticed under different circumstances. Example: "If the weather had been clearer, we would have observed the stars much better."
✓ Grammatically correct
Science
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
53 human-written examples
Thus, as in Fig. 1, for three interim tests and one final test, if we did not stop early, during the study we would have observed four differences and their corresponding four observed z-scores, z1, z2, z3, and z4.
If the DAMA result were a genuine observation rather than experimental error, says Sadoulet, "we would have observed something like 150 events".
Science & Research
I think in the average local community you would have observed very little difference.
News & Media
Coltrane, the saxophonist and composer, who was born in 1926 and died in 1967, would have observed his 81st birthday on Sunday.
News & Media
Had I had the nerve, I would have observed that, in his one line of genuine poetry, there is only one poetic word.
News & Media
Had the HMS Beagle landed on an island inhabited by Big Brother, he would have observed the show's stubborn refusal to die off despite repeated pointless mutations, nabbed a tortoise and then buggered off to pen his Theory of Devolution.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
6 human-written examples
"Things would've gotten really weird if we hadn't – we would've observed all kinds of things in the detector".
News & Media
The Chanel boots take the designer sneaker trend to its logical conclusion, while the bag is, as Coco herself would perhaps have observed, one accessory too many.
News & Media
"But the bird would certainly have observed that.
News & Media
What would we have observed if we could see the outcomes for one subject that had received both the treatment and the control?
Finally, we would not have observed the initial uptick and subsequent decrease in UCE after introduction of the intervention.
Expert writing Tips
Best practice
Use "would have observed" to discuss hypothetical past scenarios and their potential outcomes, particularly when analyzing data or considering alternative possibilities.
Common error
Avoid using "would have observed" when referring to present or future events. This phrase is specifically for past hypothetical situations.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "would have observed" functions as a conditional perfect construction, expressing a hypothetical observation or realization in the past. It typically appears in conditional sentences, indicating what would have been seen or noticed if certain conditions had been met. Ludwig AI confirms its correct and usable form.
Frequent in
Science
60%
News & Media
40%
Formal & Business
0%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "would have observed" is a grammatically sound and commonly used phrase to express hypothetical past observations. Ludwig AI confirms its validity. It frequently appears in both scientific and news contexts to discuss scenarios that didn't actually occur but could have under different circumstances. When writing, ensure you maintain consistent tenses and avoid misusing it for present or future events. Alternatives such as "could have noticed" or "might have seen" can be employed to express similar ideas with slightly different nuances. Always double-check the surrounding context when opting to use this phrase to ensure clarity and correctness.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
would have detected
Similar to the original but emphasizes the detection aspect.
could have noticed
Suggests a possibility of noticing something, emphasizing the ability to perceive.
could have perceived
Emphasizes the act of perceiving, implying a more conscious observation.
might have seen
Indicates a possibility of seeing something, less certain than "would have observed".
would have noted
Indicates a formal recording or acknowledgment of an observation.
may have detected
Implies a potential discovery, often used in scientific or investigative contexts.
would have discovered
The emphasis is discovering something. It is more directed than just observing.
might have discerned
Suggests a subtle or careful observation leading to a discovery.
may have remarked
Suggests a verbal or written comment based on an observation.
can imagine observing
This phrase refers to visualizing, but it is still in a hypothetical form of observing.
FAQs
How can I use "would have observed" in a sentence?
Use "would have observed" to describe a hypothetical situation in the past, indicating what someone might have seen or noticed if circumstances had been different. For example: "If the experiment had been conducted differently, we "would have observed" different results."
What are some alternatives to "would have observed"?
You can use alternatives like "could have noticed", "might have seen", or "may have detected" depending on the context and the level of certainty you want to convey.
Is it correct to say "would of observed" instead of "would have observed"?
No, "would of observed" is grammatically incorrect. The correct form is ""would have observed"", which uses the auxiliary verb "have".
What is the difference between "would have observed" and "would observe"?
"Would have observed" refers to a hypothetical situation in the past, while "would observe" refers to a conditional or habitual action in the present or future. For example, "If we repeated the experiment, we "would observe" similar results" (future) versus "If we had repeated the experiment, we "would have observed" similar results" (past hypothetical).
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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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested