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4 days vs 4 day

Both '4 days' and '4 day' are correct, but they are used in different contexts. '4 days' is used when referring to a specific duration of time, while '4 day' is used when describing a single day as a unit. The choice between the two depends on whether you are talking about multiple days or just one day.

Last updated: April 01, 2024 • 16680 views

4 days

This phrase is correct and commonly used in English when referring to a specific duration of time.

Use '4 days' when you want to specify a period of four days. It is the plural form of 'day' when talking about multiple days.

Examples:

I will be on vacation for 4 days.
It took us 4 days to complete the project.

Show examples from the web [+]

Median time to normocalcaemia was 4 days.
In general this disappears within 4 days.
The connection to the submarine ended 4 days ago.
They said she's been missing for 4 days.
It takes about 4 days by EMS.
Possibility to do a 4 days tour.
He was launched from Cape Canaveral 4 days ago.
The first just 4 days later.
He wrote it in 4 days.
You've held him 4 days without a warrant.
No, I left 4 days ago...
I had 4 days left to see the second to last result...
No, it's 4 days more on the road.
Luisa spent her last 4 days in the Hospital of Santa Maria Colotepec.
Because in 4 days, it'll be 10 years since J-Stryke was murdered.
I've spent the last 4 days getting everything ready.
An estimated 375 million people are entitled to vote in elections spanning 4 days in June.
Sunday the 18th, 4 days ago.
2,000 heads spending 250 Gs in 4 days.
Christmas is only 4 days away.

Alternatives:

several days
a few days
a couple of days
a number of days
multiple days

4 day

This phrase is correct and commonly used in English when describing a single day as a unit.

Use '4 day' when you are referring to a single day as a unit. It is the singular form of 'days' when talking about one day.

Examples:

I need to take a 4-day course.
He spent 4 day hiking in the mountains.

Show examples from the web [+]

We enjoyed our 4 day stay.
On our tour of Sardinia we had a wonderful 4 day stay here.
Cara del Indio (4 day excursion)
Posted 4 day(s) ago
The Raymond Blanc Cookery School, opened in 1991, offering a choice of 1, 2 or 4 day courses, it attracts a constant stream of budding chefs.
Celebrating the 10th anniversary edition with a 17 per cent increase in area over the last show in 2007, WoodMac China 2009 closed its doors last Friday, 20th February 2009, with exhibitors reporting record sales during the 4 day event.
Absorption Kentera has a concentration of oxybutynin sufficient to maintain continuous transport over the 3 to 4 day dosing interval.
The first three days are similar to the 4 day tour.
Tour 4 day - Difficulty: Easy
4 day Inca Trail to Machu Picchu
Pico Humboldt (4 day excursion)
Each level offered in 6 day and 4 day formats
For example if you buy a 4 day Barcelona card on a Monday it will be valid until the end of Thursday of the same week.
Weekend for two, 3 or 4 day mini breaks with or without accommodation
The trip costs $ 130,99 person, including tax, tour, and 4 day and 3 night.
25hrs. supervision in a 4 day course (see below)
Los Llanos - Ecotourism (4 day excursion)
For example, if you start using a 4 day pass on the 23 March you then have 3 remaining other days that you can use your pass until the 22 April inclusive.
Sample time: 1 day without logo, 4 day with logo
It is not required to book from Saturday to Saturday. Reservations less than 4 day + 30%.

Alternatives:

a single day
one day
a day
a day's time
a day's duration

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