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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
for how second
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "for how second" is not correct and does not make sense in written English.
It appears to be an incomplete or incorrect expression and cannot be used in any context. Example: "I am unsure about the meaning of 'for how second' in this sentence."
⚠ May contain grammatical issues
News & Media
Science
Wiki
Alternative expressions(20)
for how long
for what duration
after how much time
how much later
in what order
at which stage
what is the next step
by what alternative means
for how most
for how else
for how further
for how other
for how different
for how more
for how well
for how ever
for how even
for how best
how could it be done differently
for how next
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
2 human-written examples
Even though Nintendo has a great idea for how second screen gaming could work, the market fundamentally regards it askance.
News & Media
Below, I discuss the factors that underlie the spread of cohabitation in each country and propose country-specific hypotheses for how second birth risks may differ by union type.
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
My experience with alcohol and private pain has given me a near-religious fervor for how first-person storytelling can illuminate the human experience: through your story, I come to see my own.
News & Media
That's due to Apple's limitations for how third-party devices can provide power to its notebooks.
News & Media
He adds that the study represents the "state of the art" for how first American sites should be studied, especially as more and more of those sites are likely to be found underwater.
Science & Research
Youth expressed concern for how second-hand smoking impacted them and their siblings.
Science
Yet, "Arte da Lingua Malabar" is the best evidence for showing how sixteenth-century Tamil was heard and written by a sixteenth-century Portuguese.
Academia
Yet, Arte da Lingua Malabar is the best evidence for showing how sixteenth-century Tamil was heard and written by a sixteenth-century Portuguese.
Academia
We saw this most blatantly with Iraq and the complete disregard for how a second war would distract resources and attention from the "good war" in Afghanistan.
News & Media
In late October, the Treasury Department officially adopted the guidelines, first proposed in April, which include suggestions for how these second-lien holders might be paid in such situations.
News & Media
How long could Anne's eyes and lips have kept moving after her head and body parted ways, and for how many seconds might she have suffered pain?
News & Media
Expert writing Tips
Best practice
Avoid using the phrase "for how second" in your writing. It is not grammatically correct and can confuse your readers. Instead, use phrases like "for how long" or "after how much time".
Common error
Do not confuse adverbs like "long" (referring to duration) with ordinal numbers like "second" (referring to sequence). Using "second" in this context creates a grammatically incorrect phrase.
Source & Trust
82%
Authority and reliability
1.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "for how second" does not function grammatically in English. According to Ludwig AI, the expression is incorrect. It seems to attempt to inquire about duration or sequence but fails to form a coherent question.
Frequent in
Science
33%
News & Media
33%
Wiki
33%
Less common in
Formal & Business
0%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, the phrase "for how second" is grammatically incorrect and should be avoided in both formal and informal writing. As Ludwig AI states, the phrase is incorrect. While some instances appear in various sources, including news, science, and wiki articles, these are likely errors rather than accepted usage. It appears the intent of "for how second" is to ask about duration or order, but "for how long" or a rephrased sentence should be used instead. Always prioritize grammatically correct and clear phrasing to ensure effective communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
for how long
Replaces "second" with "long" to inquire about a duration of time, correcting the grammatical error.
for what duration
Uses a more formal term, "duration", to ask about the length of time, providing a grammatically sound alternative.
after how much time
Focuses on the amount of time passed before an event, shifting the phrasing to be grammatically correct.
how much later
Inquires about a point in time relative to another, changing the structure to a more natural phrasing.
in what order
Addresses the sequence of events rather than a specific time frame, altering the question's focus.
at which stage
Shifts the focus to a specific stage or point in a process, using a more descriptive term.
for what interval
Uses "interval" to specify a period of time, providing a formal and grammatically correct alternative.
how many seconds
Asks for a specific number of seconds, replacing the incorrect "how second" with a measurable quantity.
what subsequent steps
Focuses on the following actions or stages, changing the focus from time to sequence.
what is the next step
Addresses the immediate action following the current one, using a more directive approach.
FAQs
What is a correct alternative to "for how second"?
The phrase "for how second" is grammatically incorrect. Use alternatives such as "for how long" when referring to duration, or rephrase your sentence to avoid this construction.
How can I ask about the duration of something correctly?
Instead of "for how second", use "for how long" or "what duration" to inquire about the length of time something lasts.
Is "for how second" ever correct in English?
No, the phrase "for how second" is not grammatically correct in standard English. It does not follow conventional English syntax and is considered an error.
Can "for how second" be confused with other similar phrases?
Yes, it might be confused with phrases like "how many seconds" which refers to a specific number of seconds, but "for how second" itself remains incorrect.
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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
82%
Authority and reliability
1.8/5
Expert rating
Real-world application tested