was prolonged to

USAGE SUMMARY

The phrase "was prolonged to" is correct and usable in written English.
It can be used when indicating that a certain period or event has been extended or lengthened to a specific time or date. Example: "The deadline for the project was prolonged to the end of the month due to unforeseen circumstances."

✓ Grammatically correct

Science

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

In vivo release time of sandwich films was prolonged to 42 days.

Acta Pharmaceutica Sinica B

Latency was prolonged to 144.9% at 3 days and recovered to 101% at 6 months.

Archives of Physical Medicine and Rehabilitation

The results showed that the seed retention time in the reactor was prolonged to strengthen the induced crystallization process.

Journal of Environmental Sciences

To show that Poland's intentions were above suspicion, Beck was sent to Moscow in February, and the existing Soviet-Polish nonaggression treaty was prolonged to December 31 , 1945

Britannica

The experiment was prolonged to 10 days since we did not observe a significant increase in GFAP expression in control cells after 7 days of differentiation (data not shown).

Nature

The molten multi-component oxides could pass through the oxide path connected to the inter micro-pores smoothly and infiltrated into the stainless steel coating when the period of impregnation was prolonged to 45 min.

Surface and Coatings Technology

Interestingly, 4α-acyloxy-2α-bromopicropodophyllotoxins were easily converted to a more rigid compound 14 by an intramolecular Friedel Crafts alkylation reaction in the presence of BF3·Et2O when the reaction time was prolonged to 4 18 h.

Tetrahedron

Liposomal encapsulation of 125I-hIFNγ increased the local area under the curve 4-fold, and the presence of the radiolabeled hIFNγ at the injection site was prolonged to 7 days.

Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids

This amount was further increased to 10 ± 1% (dcw) when cultivation was prolonged to 14 days.

AMB Express

As the oxidation time was prolonged to 200 h, the water content increased to 779 ppm.

Nanoscale Research Letters

When the treatment was prolonged to 8 days, however, 8 out of 10 infected mice survived.

Science Magazine

Expert writing Tips

Best practice

When using "was prolonged to", ensure that the context clearly indicates what is being extended. For example, specify whether it's a period, treatment, or process.

Common error

Avoid using "was prolonged to" without clearly defining the subject that's being prolonged. Ambiguity can arise if the reader doesn't immediately understand what the duration is being applied to.

Linguistic Context

The phrase "was prolonged to" functions as a passive verb phrase, indicating that something had its duration extended up to a specific point. Ludwig shows examples in scientific research, legal agreements, and general observations.

Expression frequency: Very common

Frequent in

Science

81%

Encyclopedias

7%

News & Media

3%

Less common in

Formal & Business

3%

Reference

2%

Wiki

1%

Ludwig's WRAP-UP

In summary, "was prolonged to" is a frequently used passive verb phrase that indicates the duration of something has been extended to a certain point. As Ludwig AI confirms, the phrase is grammatically correct and predominantly appears in scientific and formal contexts. When using this phrase, clarity is key—ensure that the context makes clear what is being prolonged. For alternative phrasings, consider "was extended to" or "was lengthened to". It is a suitable phrase for reporting factual extensions of time.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

was lengthened to

Substitutes "prolonged" with "lengthened", which is a more direct synonym, and maintains the original grammatical structure.

was extended until

Replaces "prolonged" with "extended" emphasizing the act of making something longer, and "to" with "until", focusing on the endpoint.

was increased to

Focuses on a quantitative aspect being made larger, suitable when referring to durations or amounts.

was stretched to

Implies a literal or figurative act of making something longer, possibly suggesting difficulty or strain.

was expanded to

Suggests an increase in scope or coverage, rather than just duration.

lasted until

Emphasizes the duration's endpoint, similar to 'spanned until' but with a more concise structure.

continued up to

Highlights the ongoing nature of something reaching a specific point, adding a sense of continuous action.

spanned until

Focuses on the entire duration reaching a certain point, with a slightly different emphasis.

was delayed until

Indicates a postponement rather than a lengthening, changing the core meaning.

was carried over to

Suggests continuation into a new period or context, deviating from the simple extension of time.

FAQs

How can I use "was prolonged to" in a sentence?

You can use "was prolonged to" to indicate that the duration of something has been extended. For example, "The experiment /s/was+prolonged+to/ ten days" or "The treatment /s/was+prolonged+to/ two weeks".

What's an alternative to using "was prolonged to"?

Alternatives include "was extended to", "was lengthened to", or "lasted until", depending on the context.

Is it correct to say "has been prolonged to" instead of "was prolonged to"?

Yes, "has been prolonged to" is grammatically correct. "Was prolonged to" typically refers to a past event, while "has been prolonged to" indicates a present perfect tense, meaning the prolongation started in the past and continues to have relevance to the present.

What is the difference between "was prolonged to" and "was extended to"?

While both phrases are similar, "was extended to" often implies a planned or intentional increase in duration, whereas "was prolonged to" can suggest a less predictable or even necessary increase due to unforeseen circumstances. However, in many contexts, they are interchangeable.