for three days

USAGE SUMMARY

The phrase "for three days" is correct and usable in written English. You can use it to indicate a duration of time, typically in contexts involving events, activities, or conditions lasting that long. Example: "I will be staying at the hotel for three days." Alternative expressions include "over three days," "during three days," and "for a period of three days."

✓ Grammatically correct

News & Media

Science

Formal & Business

Wiki

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

All day for three days.

The New York Times - Arts

farm for three days.

The New York Times

For three days, nothing.

The New Yorker

Arguments lasted for three days.

The New Yorker

He slept for three days.

The New York Times

"I screamed for three days.

The New York Times

Conch for three days and three nights.

The New Yorker

They had been there for three days.

The Economist

The rallies continued for three days.

The New Yorker

For three days, he couldn't see.

The New York Times

The case is listed for three days.

Independent

Expert writing Tips

Best practice

When using this phrase with a noun to form an adjective, remember to use a hyphen and drop the plural 's', as in "a three-day trip".

Common error

Avoid using 'since' with a duration. 'Since' marks a specific starting point in time, while 'for' marks the length of time. Write 'I have been here for three days' rather than 'I have been here since three days'.

Linguistic Context

The phrase "for three days" functions as a temporal prepositional phrase consisting of the preposition 'for' (indicating duration), the numeral 'three' and the plural noun 'days'. According to Ludwig, it typically serves as an adverbial modifier of a verb to specify how long an action or state persists.

Expression frequency: Very common

Frequent in

News & Media

65%

Science

15%

Formal & Business

10%

Less common in

Wiki

5%

Reference

3%

Literature

2%

Ludwig's WRAP-UP

In conclusion, "for three days" is an essential and ubiquitous phrase for expressing a 72-hour duration in English. Ludwig AI data demonstrates its dominance across high-authority platforms, ranging from elite journalism to peer-reviewed scientific studies. It is grammatically stable and requires only a basic understanding of the difference between duration (for) and starting points (since) to be used effectively. Whether you are writing a technical report or a casual narrative, this phrase remains the standard choice for temporal measurement. For increased variety, consider alternatives like "over a three-day period" in formal contexts.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

over a three-day period

Adds a slightly more formal, structured tone often used in reports or data analysis

over the course of three days

A more narrative and verbose way to describe the duration

throughout three days

Emphasizes that the action occurred continuously or repeatedly across the entire duration

for a duration of three days

Explicitly mentions the concept of duration, suitable for formal or scientific contexts

for 72 hours

Increases technical precision by using hours instead of days

for a three-day span

Uses a noun phrase to describe the timeframe as a single unit

for three days' time

An idiomatic variation that uses the possessive form to quantify the period

during three consecutive days

Explicitly clarifies that the days followed one after another without a break

across three days

Suggests a distribution of events over that time rather than a continuous state

through three days

A more concise, occasionally literary way of expressing endurance through time

FAQs

Is it correct to say 'for three days'?

Yes, it is perfectly correct. Ludwig AI confirms its widespread use in authoritative sources like The New York Times and The Guardian to denote a duration of 72 hours.

What is the difference between 'for three days' and 'during three days'?

While "for three days" focuses on the total duration, "during three days" suggests that an event happened at some point within that timeframe. "For" is much more common for continuous states.

Should I use 'for three days' or 'for three days' time'?

Both are correct, but "for three days" is more direct and common. Adding "time" is a slightly more formal idiomatic variation often used in British English.

How do I use 'for three days' in the present perfect tense?

You use it to show an action that started in the past and continues to the present, such as "I have waited for three days".