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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
they have left
Grammar usage guide and real-world examplesUSAGE SUMMARY
"they have left" is a grammatically correct and commonly used part of a sentence in written English.
It is typically used in the present perfect tense to indicate that an action or event happened in the past and is ongoing or has just been completed. Example: "My parents have left for their trip to Europe already. They will be gone for two weeks."
✓ Grammatically correct
News & Media
Formal & Business
Science
Wiki
Alternative expressions(20)
they have filtered
they have retrieved
they made it
they reached their destination
they have driven
they have failed
they have moved
they cleared out
they are gone
they have achieved
they went away
they are present
they pulled out
they departed
they are in attendance
they showed up
they are here
they turned up
they have arrived
they have received
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
And they have left.
News & Media
They have left a heritage.
News & Media
"They have left a mess".
News & Media
They have left little to chance.
News & Media
They have left the countryside.
News & Media
"That's all they have left.
News & Media
They have left us behind".
News & Media
I don't know what they have left".
News & Media
Why couldn't they have left it alone?
News & Media
They have left a skeletal process".
News & Media
'They have left burnt-out tanks.
News & Media
Expert writing Tips
Best practice
Use "they have left" to describe a completed action in the past that has relevance to the present, such as "They have left a legacy of innovation".
Common error
Avoid using "they have left" when describing a future event or a hypothetical situation; instead, use the future tense: "They will leave tomorrow."
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "they have left" functions as a present perfect verb phrase, indicating a completed action by a group with present relevance. Ludwig confirms its common usage across various contexts.
Frequent in
News & Media
60%
Formal & Business
15%
Science
10%
Less common in
Wiki
8%
Academia
5%
Reference
2%
Ludwig's WRAP-UP
In summary, "they have left" is a versatile and frequently used present perfect verb phrase that signifies a group's departure with implications for the present. Ludwig's analysis indicates its grammatical correctness and suitability for neutral communication across varied contexts, including news, business, and general discourse. While alternatives like "they departed" or "they have gone" exist, "they have left" commonly expresses a recent, relevant action. Avoid using it for future scenarios or substituting it for past perfect tenses where appropriate. According to Ludwig, the phrase is most often encountered in "News & Media".
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
they have gone
Uses a different verb form to indicate a completed departure.
they departed
Focuses on the act of leaving, removing the present perfect tense.
they went away
Simplifies the phrasing to a more basic expression of leaving.
they are gone
Shifts the focus to the state of being absent rather than the act of leaving.
they abandoned ship
Implies a more urgent or complete form of departure.
they vacated the premises
Formal phrasing that emphasizes leaving a specific location.
they cleared out
Informal phrasing that implies a quick or complete departure.
they moved on
Suggests leaving a situation or topic and progressing to something else.
they checked out
Implies leaving a specific location with official or announced departure.
they pulled out
Phrasing that implies exiting from a situation, agreement or activity.
FAQs
How can I use "they have left" in a sentence?
The phrase "they have left" is used to indicate that a group has departed. For example, "They have left the building" indicates that the group is no longer in the building. Similarly, "They have left a message" means the group has left a message for someone.
What are some alternatives to saying "they have left"?
You can use alternatives such as "they departed", "they went away", or "they have gone" depending on the context.
Is it correct to say "they had left" instead of "they have left"?
Both phrases are grammatically correct, but they have different meanings. "They have left" (present perfect) indicates an action completed recently, while "they had left" (past perfect) refers to an action completed before another point in the past. For example: "They have left, so we can start the meeting" versus "They had left before I arrived, so I missed them".
What's the difference between "they have left" and "they left"?
"They have left" implies a connection to the present, such as a present consequence of their leaving. "They left" is a simple past tense statement with no direct implication for the present moment. For example, "They have left a mess" implies the mess is still there, while "They left yesterday" simply states when the departure occurred.
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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