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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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how long it lasts

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "how long it lasts" is correct and can be used in written English.
You can use it to ask a question like: "I wonder how long it lasts". You can also use it in a more general sense to refer to the duration of something, like: "I can't believe how long it lasts for".

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Its critical characteristics — how long it lasts, how frequently it returns — fluctuate, but eventually drought ends.

News & Media

Los Angeles Times

Time will tell how long it lasts.

News & Media

Independent

We'll see how long it lasts".

News & Media

The New York Times

Sinusitis is classified by how long it lasts.

A sunscreen's SPF doesn't correlate to how long it lasts.

News & Media

The New York Times

Not even princes or princesses can make it happen, or control how long it lasts.

News & Media

The New York Times

We'll kick it off in February 2016, and see how long it lasts!

It is not known how long it lasts, Dr. Young said.

"The long-term impact on the economy will depend on how long it lasts.

How overpowering it is, how long it lasts, how much you suffer because of it".

News & Media

The New Yorker

Much will depend on how long it lasts and whether it damages the economy.

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Expert writing Tips

Best practice

When discussing the lifespan or durability of a product, use "how long it lasts" to inform consumers about its value and longevity. For example, 'Consider the warranty to understand how long it lasts under normal use.'

Common error

Avoid using "how long it lasts" when referring to a fixed deadline or a specific appointment. Instead, use phrases like "how long it takes" or "the duration of" to maintain clarity and precision.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

84%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "how long it lasts" functions as a relative clause, often used as an embedded question or within a declarative statement to inquire about or specify the duration of something. As supported by Ludwig, it's a grammatically sound and common construction.

Expression frequency: Very common

Frequent in

News & Media

55%

Academia

20%

Science

15%

Less common in

Wiki

5%

Encyclopedias

3%

Formal & Business

2%

Ludwig's WRAP-UP

In summary, "how long it lasts" is a grammatically correct and very common phrase used to inquire about the duration of something. As Ludwig AI confirms, it’s suitable for a broad range of contexts, especially within news, academic, and scientific domains. The phrase functions as a relative clause, often embedded within questions or statements. While perfectly acceptable, you can use alternatives like "how long it continues" or "what is its duration" to add variety to your writing. Remember to consider the context; avoid using it for fixed deadlines, where "how long it takes" might be more appropriate.

FAQs

What can I say instead of "how long it lasts"?

You can use alternatives like "how long it continues", "how long it takes", or "what is its duration" depending on the context.

Is "how long it lasts" grammatically correct?

Yes, "how long it lasts" is grammatically correct and commonly used in both spoken and written English to inquire about the duration of something. According to Ludwig, this phrase is perfectly acceptable.

How do I use "how long it lasts" in a sentence?

You can use "how long it lasts" in a sentence to ask about the duration of an event, the lifespan of an object, or the persistence of a condition. For example, "I wonder how long the effect of the medicine lasts."

What's the difference between "how long it lasts" and "how long does it last"?

"How long it lasts" is typically used in embedded questions or statements, while "how long does it last" is used for direct questions. For example, "I'm not sure how long it lasts" versus "How long does it last?"

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Source & Trust

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Authority and reliability

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Real-world application tested

Most frequent sentences: