it has been proven to work vs it has been proved to work

Both phrases are correct, but they are used in slightly different contexts. 'It has been proven to work' is more commonly used and generally preferred in formal writing. 'It has been proved to work' is also correct but it is less common in modern usage.

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Last updated: February 16, 2025 • 6504 views

This phrase is correct and commonly used in English, especially in formal contexts.

"it has been proven to work "

This phrase is the more common and preferred form. 'Proven' is the past participle of 'prove' and is used to indicate that something has been demonstrated or shown to be true or effective.

Examples:

The new treatment has been proven to be effective.
It has been proven that exercise can improve mental health.
The theory has been proven correct by recent experiments.

Show examples from the web [+]

Positive reinforcement has been proven to work.
Look, we all know that you're a legend and all, but our program has been proven to work.
At 30 the countdown in regards to wrinkles begin. It is therefore important to use a wrinkle cream that has been proven to work.
Many Members are concerned that the existing system of financial control will disappear before a new system which now exists only on paper has been proven to work.
It can sometimes depend on your genetics too, but exercise has been proven to work.
The following receiver has been proven to work with our system: BR-355 Cable GPS (GlobalSat Corporation).
There is no one single method that has been proven to work in any one area.
It has been proven that it works in that undertaking.
Drinking Dieters Tea For Weight Loss has been proven to work however, picking the right tea can be a bit of a problem if you're not familiar with the general types.
In spite of all the criticisms that have just been directed at the policy and which I share, I nevertheless remain convinced that what has been proven to work in the past should also guide us in our future action.
However, there are several natural methods that have actually been proven to work.
It has been proven to successfully lengthen the size.
To carry out this procedure will however take time and results will vary, but they have been proven to work numerous times.
It has been proven to help regulate the blood pressure;
This technology has not been proven to work in all member states or that it can be practically or cost effectively applied in all situations.
Yohimbe was as soon as a typical ingredient, and may still be, despite the fact that it has been proven to be detrimental to your nervous system.
The licence shall be issued only where it has been proven to the satisfaction of the importer Member State that all the conditions laid down have been fulfilled.
And it has been proven that women Are much more responsive to Transfiguration.
It has been proven that net-carbohydrate diets can contribute to weight loss.
It has been proven across Member States, that the use of tax incentives for cleaner fuels accelerates their market penetration and consumer acceptance.

Alternatives:

It has been shown to work
It has been demonstrated to work
It has been established to work
It has been verified to work
It has been validated to work

This phrase is correct but less common in modern usage. It is still grammatically accurate but may sound slightly more formal or old-fashioned.

"it has been proved to work "

While 'proved' is the past tense and past participle of 'prove,' it is less commonly used in contemporary English. It can still be used in formal writing or in contexts where a more traditional style is preferred.

Examples:

The method has been proved effective over time.
It has been proved that the hypothesis was correct.
The technology has been proved reliable in various tests.

Show examples from the web [+]

This may seem paradoxical at first sight, but it has been proved to the hilt by the two and a half years of experience referred to.
It has been proved that information technology and communications increase labour productivity.
Again it has been proved that the European Union is a magnet for this continent.
It has been proved scientifically that it is possible to cure impotence with the right medication.
However, it has been proved that that is the case.
It has been proved in immigration and paternity cases.
And the third, that the means considered adequate to punish the abuse do not harm the very Victims of the original abuse, once it has been proved to exist.
It has been proved across the Member States that the use of tax incentives for cleaner fuels accelerates their market penetration and consumer acceptance.
It has been proved that there are optimum perception periods as regards taste and smell during the day.
It has been proved again and again that people who are defending their own land are superior to the aggressors.
It has been proved that the excessively high concentrations of particles in the air originating from lead reduce children's intelligence levels.
I believe that once again it has been proved that a smaller European Union country can also play a very creative role when exercising the presidency.
It has been proved on countless occasions that the reduction of bureaucratic burdens on SMEs has resulted in economic growth and enhanced their competitiveness.
Until it has been proved that all phthalates are harmless, there is no place for plasticisers in toys for children under three.
It has been proved that a dedicated few can hold a majority to ransom.
It has been proved, as in the case of the Efremer study, that they are highly advantageous for the European economy.
Furthermore, it has been proved on other occasions that, despite problems, relatively transparent elections can be held in Africa.
Unfortunately, now it has been proved once again.
It has been proved that Russia and NATO can resolve some issues together, in the field.
It has been proved that a consistent light level and a constant distribution in keeping with a time-related schedule substantially increases the milk production of each individual animal.

Alternatives:

It has been proven to work
It has been shown to work
It has been demonstrated to work
It has been established to work
It has been verified to work

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it has been proven to work vs it has been proved to work

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