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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 did then
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "they did then" is correct and usable in written English.
It can be used to refer to actions that were taken at a specific time in the past. Example: "When the situation became critical, they did then what was necessary to ensure everyone's safety."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(2)
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
49 human-written examples
Many sleep, as they did then, on the Todd.
News & Media
Because if they did, then they would come together".
News & Media
But apparently that's not what they did then.
News & Media
The words "ring as true today as they did then," Mr. Fink wrote.
News & Media
It is unlikely that China's neighbors will appreciate this now any more than they did then.
News & Media
Nor will foreign powers tacitly back a coup as they did then.
News & Media
Middle-income families are making almost 20percentt less, after inflation, than they did then.
News & Media
And as they did then, officials today announced a series of proposals.
News & Media
Given all that's happened, Democrats have an angrier, more partisan edge than they did then.
News & Media
Well, they did then get other companies, called mortgage insurers, to insure at least part of the balance.
Academia
Human-verified similar examples from authoritative sources
Similar Expressions
1 human-written examples
If they knew all that -- and they did -- then they did not vote "in good faith".
News & Media
Expert writing Tips
Best practice
Use "they did then" to clearly contrast a past action or state with the present, providing context to highlight changes or continuities over time.
Common error
Avoid using "they did then" without a clear reference point in the past. Ensure the 'then' refers to a specific time or situation already established in the text to prevent ambiguity.
Source & Trust
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "they did then" functions as a temporal marker, indicating actions or situations as they existed at a specific point in the past. Ludwig examples show its use in comparing past and present states, highlighting changes or continuities.
Frequent in
News & Media
68%
Academia
16%
Science
10%
Less common in
Formal & Business
3%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "they did then" is a grammatically sound and frequently used phrase to reference past actions or states. As Ludwig AI confirms, this phrase is most commonly found in News & Media contexts to provide historical context and comparisons. When using "they did then", ensure a clear temporal reference to avoid ambiguity and consider alternative phrases such as "they acted at that time" or "they responded back then" for nuanced expressions. By understanding its function and potential alternatives, you can effectively incorporate "they did then" into your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
they acted at that time
Emphasizes the action taken during a specific past period, replacing 'did' with 'acted'.
they responded back then
Highlights a response or reaction in the past, adding specificity to the action.
that's what they did previously
Focuses on a previous action or behavior, using 'previously' to indicate the past.
this is what they used to do
Indicates a habitual action in the past, conveying a sense of routine or custom.
how they behaved in the past
Shifts the focus to overall behavior, emphasizing a general pattern of actions.
their actions at that point
Replaces the verb with a noun phrase, highlighting the specific actions taken.
what they carried out back then
Emphasizes the execution or implementation of actions in the past.
the way they operated then
Focuses on the manner or method in which actions were performed.
the steps they took then
Highlights specific steps or measures taken, adding a sense of procedure.
they proceeded in that manner
Emphasizes the method or style of action, conveying a sense of formality.
FAQs
How can I use "they did then" in a sentence?
Use "they did then" to compare a past action with the current situation, emphasizing a change or similarity over time. For example, "Markets are also much less leveraged, and hedge funds play a considerably smaller role than "they did then"."
What are some alternatives to "they did then"?
Alternatives include "they acted at that time", "they responded back then", or "that's what they did previously", depending on the specific nuance you want to convey.
Is it redundant to use "they did then back then"?
Yes, using both "then" and "back then" is redundant. Choose one to avoid unnecessary repetition. "They did then" or "they did back then" are both acceptable on their own.
What's the difference between "they did then" and "they do now"?
"They did then" refers to past actions, while "they do now" refers to present actions. Use them to highlight changes over time. For example, "His cruel statements cannot, and should not, be erased, but they mean something different today than "they did then"."
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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
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested