a series of studies has vs a series of studies have

'A series of studies has' is the proper English phrasing. In this case, 'series' is the main subject of the sentence, and 'has' should agree with it as a singular noun. It is important to use the singular verb 'has' instead of 'have.'

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Editor at TextRanch

Last updated: March 10, 2025 • 5599 views

This phrase is correct. 'Series' is the main subject of the sentence, and 'has' should agree with it as a singular noun.

"a series of studies has"

Use 'a series of studies has' when referring to a singular series of studies. The verb 'has' should be used to match the singular noun 'series.'

Show examples from the web [+]

However, a series of studies has shown the limits of this system in the long term.
So he set up a series of studies, applied mental stimuli... and photographed it with a dark field microscope.
A provisional index is under construction. A series of studies examining the existing data sources are being carried out.
Mark Lepper and I did a series of studies in which we sought the answer to this very question.
Risks to workers shall be assessed in a series of studies using the additive in the form for which the application has been submitted.
This enquiry, based on a series of studies of the violent videogame sector, revealed the need for a multidisciplinary approach, which currently does not exist.
In 2004, scientists from the University of Jena in Germany carried out a series of studies on pollen from genetically modified maize.
Subsequently, the statistical properties of the Fixed Dose Procedure have been evaluated using mathematical models in a series of studies (4)(5)(6).
Last year, my services started a series of studies into the social protection systems in the 13 candidate countries and they are currently examining health care systems.
But do all individuals benefit from taking such an approach to choice? Mark Lepper and I did a series of studies in which we sought the answer to this very question.
In June 2003 the Commission launched a series of studies in order to ascertain the current position in the Member States.
A series of pilot studies for these characteristics will be instituted by the Commission.
As you are aware, the Commission is to carry out a series of studies on the audiovisual sector and an extensive consultation with all the interested parties before proposing any revisions of the "Television without Frontiers" Directive, if the analyses suggest a need for this.
A series of studies, such as the report by the high-level group chaired by Wim Kok, underlined the urgent need to take the necessary measures to rationalise and simplify the process.
And systemically what we will show, across a series of studies, is that you, the passengers, even though the tea was picked for you at random, will end up solving more puzzles than you, the drivers.
Nevertheless, the Governing Council deemed it useful to evaluate the strategy in the light of this experience, taking into account the public debate and a series of studies undertaken by staff of the Eurosystem.
So my colleague and wife, Karen Wynn, at Yale has done a series of studies with babies where she exposes babies to puppets, and the puppets have certain food preferences.
The company also presented results from a series of studies with other vaccines that contain other serotypes of the bluetongue virus, as well as published information to show how the vaccine will also work in younger sheep.
A series of studies carried out by independent experts, including those engaged by the Commission, showed that it was technically impossible to fulfil the second-phase requirements within the deadline set and using the tests stipulated by the EEVC.
Various European countries and the USA have embarked on a series of studies with a view to determining whether wifi (i.e. the radio waves in wireless systems) generates a 'radio smog' that is harmful to human health.

This phrase is incorrect. 'Series' is a singular noun, so the verb 'have' does not agree with it.

"a series of studies have"

Avoid using 'a series of studies have' as it does not match the singular noun 'series.' Instead, use 'a series of studies has.'

Show examples from the web [+]

A provisional index partially following the concepts of the Regulation is available from 1996 onwards. A series of methodological studies and simulations have been conducted during 2003 and 2004 for testing the compilation of the final index.
So he set up a series of studies, applied mental stimuli... and photographed it with a dark field microscope.
A provisional index is under construction. A series of studies examining the existing data sources are being carried out.
Mark Lepper and I did a series of studies in which we sought the answer to this very question.
Risks to workers shall be assessed in a series of studies using the additive in the form for which the application has been submitted.
This enquiry, based on a series of studies of the violent videogame sector, revealed the need for a multidisciplinary approach, which currently does not exist.
In 2004, scientists from the University of Jena in Germany carried out a series of studies on pollen from genetically modified maize.
However, a series of studies has shown the limits of this system in the long term.
Subsequently, the statistical properties of the Fixed Dose Procedure have been evaluated using mathematical models in a series of studies (4)(5)(6).
Last year, my services started a series of studies into the social protection systems in the 13 candidate countries and they are currently examining health care systems.
But do all individuals benefit from taking such an approach to choice? Mark Lepper and I did a series of studies in which we sought the answer to this very question.
In June 2003 the Commission launched a series of studies in order to ascertain the current position in the Member States.
A series of pilot studies for these characteristics will be instituted by the Commission.
As you are aware, the Commission is to carry out a series of studies on the audiovisual sector and an extensive consultation with all the interested parties before proposing any revisions of the "Television without Frontiers" Directive, if the analyses suggest a need for this.
A series of studies, such as the report by the high-level group chaired by Wim Kok, underlined the urgent need to take the necessary measures to rationalise and simplify the process.
And systemically what we will show, across a series of studies, is that you, the passengers, even though the tea was picked for you at random, will end up solving more puzzles than you, the drivers.
Nevertheless, the Governing Council deemed it useful to evaluate the strategy in the light of this experience, taking into account the public debate and a series of studies undertaken by staff of the Eurosystem.
So my colleague and wife, Karen Wynn, at Yale has done a series of studies with babies where she exposes babies to puppets, and the puppets have certain food preferences.
The company also presented results from a series of studies with other vaccines that contain other serotypes of the bluetongue virus, as well as published information to show how the vaccine will also work in younger sheep.
A series of studies carried out by independent experts, including those engaged by the Commission, showed that it was technically impossible to fulfil the second-phase requirements within the deadline set and using the tests stipulated by the EEVC.

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a series of studies has vs a series of studies have

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