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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
should have finished
Grammar usage guide and real-world examplesUSAGE SUMMARY
The part of the sentence "should have finished" is correct and usable in written English.
You can use it when referring to something that was supposed to have been completed in the past but wasn't. For example: I should have finished my essay yesterday, but I was too busy.
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(20)
should have ceased
should have established
should have discontinued
should have implemented
should have terminated
should have overtaken
should have ended
should have issued
should have won
had to finish
must have allocated
must have committed
must have participated
must have contributed
must have collected
must have come
was required to complete
must have followed
must have eaten
must have anticipated
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
60 human-written examples
But still, he should have finished it.
News & Media
The headlines alone should have finished him.
News & Media
'I should have finished school first,' " said Ms. Ventura.
News & Media
We should have finished the game off with all the chances we created.
News & Media
By his estimation, he should have finished with 13 3-pointers.
News & Media
She should have finished a year earlier, but she had made an odd choice.
News & Media
He should have finished fourth, but on the last lap Conway spun out….
News & Media
It is long past the time when we should have finished the job.
News & Media
By the end of July work should have finished on building NOVA, an experiment designed to pin those details down.
News & Media
His comic performances have long included jokes such as "The Germans should have finished the job in 1945".
News & Media
In one, Dieudonné says to his Jewish partner, "The Germans should have finished the job in 1945".
News & Media
Expert writing Tips
Best practice
Employ "should have finished" to indicate that something was expected to be completed by a certain time but wasn't. For example, "The project should have finished last week."
Common error
Avoid using "should have finished" to describe current or future actions. It's specifically for past actions that were not completed. Instead, use "should finish" or "should be finished" for future actions.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "should have finished" functions as a modal perfect construction. It expresses a past action that was expected or advised but did not occur. This construction is frequently used to express regret, criticism, or unfulfilled expectations, as demonstrated by Ludwig.
Frequent in
News & Media
57%
Science
22%
Wiki
8%
Less common in
Formal & Business
5%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "should have finished" is a modal perfect construction used to express that something was expected or desired to be completed in the past but was not. As indicated by Ludwig, it conveys regret, criticism, or missed opportunities. Grammatically correct and widely used, it is suitable for both formal and informal contexts. While common in News & Media, as well as Science sources, its versatility makes it a valuable addition to your writing toolkit. Remembering the correct tense and avoiding common errors, as discussed, will ensure clear and effective communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
ought to have completed
Replaces "should" with "ought to", suggesting a moral obligation or expectation.
should have finalized
More direct substitution using another verb synonym.
was supposed to have completed
Emphasizes the expectation or plan that something would be finished.
should have concluded
Suggests a more formal tone and implies bringing something to an end.
needed to have finalized
Highlights the necessity of finishing something.
should have wrapped up
More informal, suggesting finishing a task efficiently.
had to have wrapped up
Indicates a requirement or obligation to complete something.
should have finalized by now
Adding "by now" to emphasize the time aspect of expectation.
was expected to have concluded
Focuses on the anticipation that something would be brought to an end.
must have accomplished
Implies a strong inference that something was completed.
FAQs
How can I use "should have finished" in a sentence?
Use "should have finished" to express that something was expected or desired to be completed in the past but wasn't. For example, "He "should have finished the book" by now."
What are some alternatives to "should have finished"?
Alternatives include "ought to have completed", "was supposed to have completed", or "needed to have finalized". The best alternative depends on the specific context and the nuance you want to convey.
What's the difference between "should have finished" and "should finish"?
"Should have finished" refers to something that was expected to be completed in the past but wasn't, while "should finish" refers to something that is expected to be completed in the future or present. For example, "I "should have finished yesterday"" versus "I "should finish tomorrow"".
Is it correct to say "should of finished" instead of "should have finished"?
No, "should of finished" is grammatically incorrect. The correct phrase is "should have finished". "Should've" is a contraction of "should have", but "should of" is never correct.
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested