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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 then
Grammar usage guide and real-world examplesUSAGE SUMMARY
"they then" is correct and usable in written English.
You can use "they then" when describing something that someone did in sequence or as a result of a prior action. For example, "The students completed their exams, they then celebrated with a party."
✓ Grammatically correct
News & Media
Encyclopedias
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
60 human-written examples
They then opened fire.
News & Media
"They then reviewed everything".
News & Media
They then married secretly.
Encyclopedias
"Where were they then?
News & Media
They then cut Young.
News & Media
They then fled.
News & Media
Did they then fight?
News & Media
They then sink to theft".
News & Media
They then set sail again.
Encyclopedias
Are they, then, 'bad feminists'?
News & Media
Do they then have sex?
News & Media
Expert writing Tips
Best practice
Use "they then" to clearly indicate a sequence of events performed by the same subject. It enhances clarity and temporal order in narratives or instructions.
Common error
Avoid using "they then" excessively in formal or academic writing. While grammatically correct, consider more sophisticated transition words like "subsequently" or "thereafter" for a polished tone.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "they then" is to act as a temporal connector. It links actions performed by a group, indicating that one action follows another in sequence. As Ludwig points out, it's grammatically sound and widely used.
Frequent in
News & Media
54%
Wiki
11%
Encyclopedias
8%
Less common in
Science
18%
Formal & Business
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "they then" is a grammatically correct and very common phrase used to indicate a sequence of actions performed by the same subject. As Ludwig AI confirms, it serves as a temporal connector and is frequently found in news and media sources. While appropriate for general use, more formal alternatives might be preferred in academic or highly professional writing. Remember to employ "they then" to establish clear chronological order, but avoid overuse, opting for alternatives like "subsequently" or "thereafter" when appropriate.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
next, they
Uses a common sequencing adverb to introduce the subsequent action.
subsequently they
Reorders the words while maintaining the temporal sequence.
afterward they
A single word adverb indicating something happened at a later time.
thereafter they
Uses a more formal adverb to indicate the following action.
following that, they
Adds an introductory phrase to emphasize the sequential nature.
after that, they
Similar to "following that", but slightly less formal.
they proceeded to
Emphasizes the continuation of action after a previous one.
they went on to
Indicates a progression to another action or event.
they accordingly
Implies that their following action was logical and suitable.
they therefore
Indicates that their following action was logical and suitable.
FAQs
How can I use "they then" in a sentence?
"They then" is used to describe a sequence of actions by the same subject. For example, "The team completed the first phase; they then moved on to the second."
What are some alternatives to "they then"?
Alternatives include "subsequently", "thereafter", "after that", or "next", depending on the desired level of formality and emphasis.
Is it grammatically correct to start a sentence with "they then"?
Starting a sentence with "they then" is grammatically correct, especially when it directly follows a previous sentence describing a preceding action. However, ensure smooth flow and avoid overuse for stylistic reasons.
What's the difference between "they then" and "they afterwards"?
Both "they then" and "they afterwards" indicate a sequence, but "they then" suggests a more immediate temporal connection, while "they afterwards" implies a slightly longer or less direct time interval between the actions.
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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