Used and loved by millions
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
has thereafter been
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "has thereafter been" is correct and usable in written English.
It can be used to indicate that something has occurred after a specific point in time and continues to be relevant or true. Example: "The project was initiated in 2020 and has thereafter been a priority for the organization."
✓ Grammatically correct
Science
News & Media
Alternative expressions(20)
has been ever since
is presently
currently is
has lately been
has now been
has immediately been
has so been
has once been
has then become
has quite been
has since evolved into
has just begun
has eventually been
has exactly been
has been presently
was subsequently
is now considered
has merely been
has now become
has just been
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
7 human-written examples
Data gathered has thereafter been evaluated by being analyzed with a common analysis by all authors.
At that time, Santas suit was changed to the red color for which it has thereafter been associated.
News & Media
This principle was first proposed with lowpass modulator [33], but has thereafter been extended to quadrature bandpass modulator [23, 26].
Chemical weapons were routinely used in World War I. Their use caused such widespread revulsion that their utilization has thereafter been shunned in most global conflicts.
News & Media
All text has thereafter been analysed as one unit of analysis.
Science
First described in RCC in 1992, ACI has thereafter been evaluated in several clinical studies with or without cytokines [ 52– 52].
Human-verified similar examples from authoritative sources
Similar Expressions
53 human-written examples
The genomes of several other phytopathogenic species in the Magnaporthales have thereafter been sequenced8.
Science & Research
The nano-domains have thereafter been functionalised with CGRGDS peptides throughout the scaffold and shown to effect changes in cell attachment and spreading, in agreement with previous 2-dimensional studies.
Science
In a statement here, the hospital said it had kept Munoz on life support to follow "the demands of a state statute" but had thereafter been bound to "follow the court order".
News & Media
Colonies have thereafter been established at Karolinska Institutet (DA/Kini and PVG.1av1/Kini).
Science
Densities have thereafter been highly variable, probably because of large water level fluctuations and associated egg mortality [ 68, 134].
Science
Expert writing Tips
Best practice
Use "has thereafter been" to clearly indicate that a condition or action began at a specific point in the past and continues to the present. Ensure the context establishes the initial point in time clearly.
Common error
Avoid using "has thereafter been" when referring to a single, completed action in the past. In such cases, use a simple past tense construction, like "was subsequently".
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "has thereafter been" functions as a temporal connector, linking a past event or state to its continued relevance or existence in the present. It highlights the ongoing impact or consequence of the initial event. As stated by Ludwig AI, the phrase is grammatically correct.
Frequent in
Science
41%
News & Media
35%
Academia
12%
Less common in
Encyclopedias
6%
Wiki
6%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, "has thereafter been" is a grammatically sound phrase used to connect a past event to a continuing state or condition. As noted by Ludwig AI, it’s appropriate for formal contexts like scientific writing and news reporting. The phrase sees frequent usage in Science and News & Media. Remember to use it when you want to highlight the ongoing relevance of a past event and avoid it when discussing purely past actions. Consider alternatives like "has since been" for a shorter time span or "has consequently been" to emphasize a direct result.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
has since been
This alternative implies a shorter or more direct period of time passing between the two events.
has subsequently been
This option suggests a logical consequence or result of the initial action.
has afterward been
This emphasizes the temporal sequence without necessarily implying causality.
was thereafter
This option shifts the emphasis to a completed action in the past.
has been from then on
This indicates a continuous state from the specific point forward.
from that point forward has been
This emphasizes the starting point and the ongoing nature of the subsequent state.
has been ever since
This alternative highlights a long duration from the initial event to the present.
has then been
This indicates a direct sequence, often implying a short interval of time.
has consequently been
This emphasizes the result of the initial event.
thereafter existed
This option focuses on the emergence or continuation of something after a specific time.
FAQs
How can I use "has thereafter been" in a sentence?
The phrase "has thereafter been" is used to indicate that something started at a specific point in the past and continues to be true or relevant up to the present. For example, "The policy was implemented in 2020 and "has thereafter been" a key priority."
What are some alternatives to "has thereafter been"?
Some alternatives include "has since been", "has subsequently been", or "has afterward been". The best choice depends on the specific context and nuance you want to convey.
Is it correct to say "had thereafter been"?
No, "had thereafter been" is generally incorrect. "Has thereafter been" indicates a state that continues to the present, while "had" indicates a state completed in the past. Use "has" when the state continues to the present.
What is the difference between "has thereafter been" and "has then been"?
"Has then been" suggests a direct and immediate sequence, whereas "has thereafter been" implies a slightly longer or less direct interval between the two events. Consider the immediacy of the sequence when choosing between "has then been" and "has thereafter been".
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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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested