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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 started
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'they have started' is a perfectly correct and usable phrase in written English.
It is used to indicate that something has begun, and can be used in almost any context. For example: "The construction crew arrived early this morning - they have started work on building the new park."
✓ Grammatically correct
News & Media
Science
Formal & Business
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
They have started to cut expenses, however.
News & Media
But they have started to recover.
News & Media
They have started to raise them.
News & Media
And lately they have started working together.
News & Media
They have started giving out mattresses.
News & Media
They have started to build a banking union.
News & Media
They have started to rise again and with good reason.
News & Media
"Their situation is awful and they have started to flee.
News & Media
They have started using bigger bombs from planes.
News & Media
They have started by erasing some of his.
News & Media
They have started eating a lot of cheese on toast.
News & Media
Expert writing Tips
Best practice
Use "they have started" when you want to emphasize that an action has commenced and might be ongoing. It's a versatile phrase suitable for various contexts from formal reports to casual conversations.
Common error
While "they have started" is generally acceptable, overuse in formal writing can make your text sound less sophisticated. Consider using more precise verbs like "initiated", "commenced", or "launched" to add nuance and formality.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "they have started" functions as a verb phrase indicating the commencement of an action or process. Ludwig shows numerous examples across diverse contexts, confirming its role in signaling that a group has initiated something.
Frequent in
News & Media
70%
Science
15%
Formal & Business
10%
Less common in
Academia
3%
Encyclopedias
1%
Wiki
1%
Ludwig's WRAP-UP
In summary, "they have started" is a highly versatile and frequently used phrase that denotes the commencement of an action or process. Its grammatical correctness and widespread use across various authoritative sources, as confirmed by Ludwig, underscore its reliability. The phrase is primarily used in news and media contexts, as well as science and business. While generally neutral in register, more formal alternatives may be preferred in academic or professional writing. With Ludwig's AI confirming its standard usage, this phrase serves as a reliable tool for indicating the initiation of activities across numerous scenarios.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
they began
Replaces "have started" with a simpler past tense form, implying a completed action of beginning.
they commenced
Substitutes "started" with a more formal synonym, "commenced", indicating a more official or ceremonious beginning.
they initiated
Replaces "have started" with "initiated", suggesting a formal or deliberate beginning of something.
they've gotten underway
Uses an idiomatic expression to convey the idea that something has begun or is in progress.
they are now doing
Shifts the focus to the ongoing action after the start, rather than the act of starting itself.
they're in the process of
Highlights the ongoing nature of the activity that has been started.
they set about
Indicates that someone has started with determination or purpose.
they've turned to
Suggests that they've started to engage with a specific new activity or approach.
they are embarking on
Emphasizes the beginning of a new or important venture or project.
they are getting into
Expresses that someone is starting to become involved or interested in something.
FAQs
How can I use "they have started" in a sentence?
You can use "they have started" to indicate the beginning of an action or process. For example, "they have started to build a new school" or "they have started to recover from the economic downturn".
What are some alternatives to "they have started"?
Depending on the context, you could use alternatives like "they began", "they commenced", or "they initiated".
Is it correct to say "they have started" or should I use "they started"?
Both "they have started" and "they started" are grammatically correct, but they convey slightly different meanings. "They have started" emphasizes the ongoing relevance of the action, while "they started" simply indicates that the action began in the past. The choice depends on the specific nuance you want to convey.
What's the difference between "they have started" and "they are starting"?
"They have started" implies a completed action of beginning, with possible ongoing consequences. "They are starting" suggests an action that is in the process of beginning right now. For example, "They have started building the bridge" suggests the construction is underway, while "They are starting the meeting now" indicates the meeting is beginning at this moment.
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested