Used and loved by millions
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
should have performed
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "should have performed" is correct and usable in written English.
It is typically used to express regret or criticism about an action that was expected to be done in the past but was not. Example: "The team should have performed better in the final match to secure a victory."
✓ Grammatically correct
News & Media
Science
Wiki
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
33 human-written examples
"We believe we should have performed better".
News & Media
If so, they should have performed it better.
News & Media
For his part, Adam Bandt disputes claims that the Victorian campaign should have performed better given the resources invested there.
News & Media
At the very least, the hospital and doctor should have performed the correct operation at no cost to the patient.
News & Media
I agree with the general sentiment that the Eagles should have performed an X-ray to evaluate the severity and type of injury to McNabb.
News & Media
But at a later press conference back in the United States, Dr. Carson said surgeons should have performed the operation differently, in several stages over the course of weeks, instead of trying to complete it all at once.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
26 human-written examples
There is no reason why we should not have the greatest living hip-hop artist on at Glastonbury; in fact, he is exactly the sort of act we should have performing.
News & Media
Should Vereen have performed in blackface for Ronald Reagan's Inauguration, even with a subversive agenda?
News & Media
"This patient will be treated, and she's fine, but if I had been following the letter of the law, I should not have performed her Pap," Dr. Goldstein said.
News & Media
In its report, the investigators do not make any conclusions about whether the plane should have/could have performed better.
News & Media
It should theoretically have performed best at identifying individual causative genes; nevertheless, it displayed a high false-positive rate for complex traits, most likely caused by chromosomal aberrations.
Science
Expert writing Tips
Best practice
Use "should have performed" to express regret or to critique a past action that did not meet expectations. Ensure the context clearly indicates what was expected.
Common error
Avoid using "should of performed", which is a common error. The correct form is always "should have performed".
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "should have performed" functions as a modal perfect construction, expressing a past obligation or expectation that was not fulfilled. Ludwig shows its use in diverse contexts, highlighting its critical or regretful tone.
Frequent in
News & Media
40%
Science
30%
Wiki
10%
Less common in
Formal & Business
5%
Encyclopedias
5%
Social Media
0%
Ludwig's WRAP-UP
The phrase "should have performed" is a modal perfect construction used to express regret, criticism, or a missed opportunity regarding an action that was expected to occur in the past. Ludwig AI indicates that the phrase is grammatically correct and frequently used in news, scientific, and formal contexts. It is essential to use the correct form, "should have", rather than the common error "should of". Alternatives include "ought to have acted" or "were supposed to have done", each carrying slightly different nuances. Therefore, "should have performed" is a versatile tool for evaluating past actions and assigning responsibility.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
ought to have executed
Replaces "performed" with "executed", suggesting a more formal or deliberate action.
needed to have carried out
Emphasizes the necessity of the action, using "carried out" as an alternative to "performed".
were expected to have achieved
Focuses on the expectation aspect, replacing "performed" with "achieved".
were supposed to have done
Uses a more informal tone to express the expectation of a completed action.
had to have undertaken
Highlights the obligation or requirement to complete the action, with a more formal verb choice.
should have completed
Focuses on the completion of the action, omitting the specific nature of the performance.
should have acted
Replaces "performed" with "acted", generalizing the nature of the required action.
must have executed
Indicates a stronger degree of certainty about the expectation of past action.
were required to have fulfilled
Stresses the mandatory nature of completing the action, using "fulfilled" as an alternative.
should have realized
Shifts the focus to achieving a certain outcome or understanding, rather than a specific performance.
FAQs
How do I use "should have performed" in a sentence?
Use "should have performed" to express that an action was expected or necessary in the past, but did not occur. For example, "The team "should have performed" better to win the game."
What can I say instead of "should have performed"?
You can use alternatives like "ought to have acted", "were supposed to have done", or "needed to have carried out", depending on the context.
What's the difference between "should have performed" and "could have performed"?
"Should have performed" implies a moral or expected obligation, while "could have performed" suggests a possibility or potential that was not realized. The first expresses regret or criticism while the second focuses on unrealized potential.
Is it correct to say "should of performed"?
No, "should of performed" is grammatically incorrect. The correct phrase is ""should have performed"", where "have" is an auxiliary verb.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested