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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
all their days
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "all their days" is correct and usable in written English.
It can be used to refer to the entirety of someone's life or a specific period of time in a poetic or literary context. Example: "They lived in harmony, cherishing each moment together all their days."
✓ Grammatically correct
News & Media
Wiki
Alternative expressions(20)
throughout their lives
for the rest of their lives
during their lifetime
as long as they live
for the duration of their lives
from now on
henceforth
from this day forward
from birth to death
their entire lifetimes
their entire lives
their entire lifetime
their entire lifestyle
their entire life
their entire living
through every stage of their lives
their very lives
throughout their life
for the duration of their life
from birth until death
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
26 human-written examples
"That family will remember that all their days.
News & Media
Hubbub surrounds some folks all their days, for they sometimes evoke it.
News & Media
Ms. Windsor and Ms. Spyer lived together and owned together and planned all their days together.
News & Media
It's not good for adults either to spend all their days on screens.
News & Media
After the spill, the MBA's staff devoted all their days to studying it.
News & Media
The New Yorker, September 7 , 1929P. 40 Hubbub surrounds some folks all their days, for they sometimes evoke it.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
34 human-written examples
contributes all their day old rolls.
News & Media
Those who left between 11 and 15 days unused were 6.5percentt less likely to receive a raise or bonus than those who used all their vacation days.
News & Media
Of this relatively small entitlement, only 44 per cent of Americans said they will take all or almost all of their days off this year.
News & Media
Millions come here and never see it at all, spending their days in tourist enclaves speaking English and spending dollars.
News & Media
All spent their days in relative isolation, finding structure and routine mostly in the daytime television schedule.
News & Media
Expert writing Tips
Best practice
Use "all their days" to add a touch of formality or a literary feel to your writing. It's particularly effective when describing long-lasting commitments, memories, or experiences.
Common error
Avoid using "all their days" in casual conversations or informal writing. Simpler alternatives like "throughout their lives" or "for the rest of their lives" are more appropriate.
Source & Trust
89%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "all their days" functions as an adverbial phrase, modifying a verb or clause to indicate the duration of an action or state. This is consistent with Ludwig AI's analysis, which identifies the phrase as grammatically correct and suitable for use in written English.
Frequent in
News & Media
90%
Wiki
10%
Science
0%
Less common in
Formal & Business
0%
Encyclopedias
0%
Academia
0%
Ludwig's WRAP-UP
In summary, the phrase "all their days" is a grammatically sound and evocative way to express the duration of someone's life or a significant period within it. Ludwig AI confirms its correctness and usability in written English. While it's more appropriate for formal or literary contexts, simpler alternatives may be better suited for casual conversations. Remember to use it thoughtfully to add depth and emphasis to your writing, considering related phrases like "throughout their lives" or "for the rest of their lives" for nuanced variations. It occurs more frequently in journalistic sources.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
throughout their lives
Focuses on the entirety of their existence, emphasizing the duration from birth to death.
for the rest of their lives
Highlights the remaining portion of their lives, suggesting a change or decision that affects the future.
as long as they live
Emphasizes the condition of being alive as the duration of the period in question.
for their entire lives
Stresses the completeness of the duration, from beginning to end.
during their lifetime
Refers to events or experiences that occur within the span of their life.
for the duration of their lives
Highlights the continuous nature of the period, emphasizing the sustained impact.
all the days of their life
A slightly more literal and emphatic way of expressing the same concept.
from now on
Implies a change of behavior from the present forward. Shorter, less literary.
henceforth
Indicates a future time, starting from the present. More formal and less common.
from this day forward
Emphasizes the present day as the starting point of a new commitment.
FAQs
What does "all their days" mean?
"All their days" means throughout their entire life or for the duration of their existence. It suggests a continuous period from beginning to end.
When is it appropriate to use "all their days" in writing?
It is most appropriate in formal writing, literary contexts, or when you want to emphasize a long-lasting commitment or memory. In more casual settings, simpler phrases are often preferred.
What can I say instead of "all their days"?
You can use alternatives like "throughout their lives", "for the rest of their lives", or "during their lifetime" depending on the context.
Is "all their days" grammatically correct?
Yes, "all their days" is grammatically correct and widely accepted. Ludwig AI also confirms that it's correct and usable in written English.
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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
4.1/5
Expert rating
Real-world application tested