The phrase "a massive effort has" is correct and usable in written English.
It can be used to describe a significant amount of work or resources that have been dedicated to a particular task or project.
Example: "A massive effort has been made to improve the infrastructure in the city, resulting in better transportation and services for residents."
Alternatives: "a tremendous effort has" or "a significant effort has".
The massive effort has been led by the country's Ministry of Health with support from UNICEF, WHO and other partners, and has resulted in a sharp decline in suspected cases.
The mystery to us is how so many intelligent people could have been involved in a massive effort that has produced so little in the way of positive results.
Consequently, massive efforts have been made to deal with these perceived deficits though a combination of top down interventions, accountability measures and changes in governance arrangements.
Worldwide, massive efforts have been made to develop oxygen-carrying plasma expanders for clinical use.
Throughout this research work, massive efforts have been made to observe the adsorption behavior of surfactant in presence of nano-particles.
Xinhua said on Saturday that "massive efforts have been squandered, and numerous rumours have been spawned, repeatedly racking the nerves of the awaiting families".
"Massive efforts" had also been made to bring Chinese-language media and Chinese community groups under the party's control, and political donations have been made, it said.
And due to the absence - or at least lack - of timely authoritative information, massive efforts have been squandered, and numerous rumours have been spawned, repeatedly racking the nerves of the awaiting families.
To purvey novel functionalities and properties massive efforts have been made to fabricate metal-based composites as metal/metal or metal oxide composites [1].
Massive efforts have been put forth to study the effect of these surfactants on the interfacial tension between water and oil.
