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Discover LudwigThe phrase "about twelve days" is correct and usable in written English.
It can be used when estimating a duration of time that is approximately twelve days, often in informal contexts.
Example: "The project will take about twelve days to complete, depending on the weather conditions."
Alternatives: "approximately twelve days" or "roughly twelve days".
Exact(2)
From there, we would mosey across the Atlantic at an average speed of thirteen knots — 14.96 miles an hour — reaching Antwerp in about twelve days.
About 150 gm powder of stem and 250 gm of leaf were macerated in 800 ml and 1000 ml of 95% ethanol of about twelve days.
Similar(58)
It took about six days.
Putting the piece together took about two days.
It took about seven days for the population to rebound.
"In about four days," Truong tells her.
In about ten days he sent the answers down.
"My quickest image has been finished in about five days.
The usual attack lasts about one day.
I write this about eight days before voting day.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com