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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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by two days

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "by two days" is correct and usable in written English.
It can be used to indicate a time difference or delay of two days in various contexts, such as scheduling or deadlines. Example: "The project deadline has been extended by two days to accommodate additional feedback."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

They were trained over a five-day period followed by two days of field testing.

Levin reported that he and Franken had spent three days in the region -- the first day in Pakistan followed by two days in Afghanistan.

News & Media

Huffington Post

(I didn't do those kind of drugs much after that. The math -- a day of wonder followed hard by two days of misery -- just didn't add up).

News & Media

Huffington Post

Refrigeration then extended its character by two days.

The nationwide voting was extended by two days.

News & Media

The Economist

Technical problems delayed the start of the previews by two days.

News & Media

The New York Times

'I am senior to you,' said Pope Francis, joshing, 'by two days'".

News & Media

The Guardian

The Italians delayed the signing by two days to reinforce the Venezuelan government's "need for ENI".

News & Media

The Guardian

Both factors, he said, prompted the Iraqi government to extend the program by two days.

News & Media

The New York Times

Rodriguez's 16-season wait has been followed by two days of sloppy play.

News & Media

The New York Times

On Saturday, the offering was delayed by two days because of the new terms.

News & Media

The New York Times
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Expert writing Tips

Best practice

Use "by two days" to clearly indicate a specific difference or extension in time, ensuring precision in scheduling or deadlines. For example, specify that "the deadline was extended by two days" instead of using vague terms.

Common error

Avoid assuming "by two days" always means a strict 48-hour period. Remember that the starting point matters. If you say a task was delayed "by two days", clarify whether this means two calendar days, which could include non-working hours or weekends.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

83%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "by two days" primarily functions as an adverbial phrase, modifying a verb or adjective to indicate a specific duration or difference in time. Ludwig AI provides various examples showing its use in contexts involving deadlines, delays, and extensions.

Expression frequency: Very common

Frequent in

News & Media

52%

Science

25%

Wiki

8%

Less common in

Formal & Business

7%

Reference

0%

Encyclopedias

0%

Ludwig's WRAP-UP

The phrase "by two days" is a common and grammatically correct way to indicate a time difference or extension of two days. As confirmed by Ludwig AI, it is used across diverse contexts, primarily in News & Media and Science. While versatile, ensure the context is clear to avoid ambiguity regarding the exact duration (calendar days vs. working days). For more formal settings, consider alternatives like "for an additional two days". Overall, "by two days" effectively conveys a precise temporal change in various writing styles.

FAQs

How can I rephrase "by two days" to sound more formal?

For a more formal tone, consider using phrases like "for an additional two days" or "by a duration of two days" instead of "by two days".

What does it mean when something is extended "by two days"?

When something is extended "by two days", it means the deadline or duration has been increased by two calendar days from the original date. For example if the original deadline was Monday, it is now Wednesday.

Is there a difference between "in two days" and "by two days"?

Yes, "in two days" indicates when something will happen (a future point in time), whereas "by two days" indicates the amount of change or extension from a previous point. "The event will occur in two days." vs "The deadline was extended by two days."

What are some informal alternatives to "by two days"?

Informal alternatives include "a couple of days later" or "just two days after."

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Source & Trust

83%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: