Singular Verb:
* When "research" refers to the process of inquiry: "Research is a vital part of scientific progress."
* When "research" refers to a field of study: "Research has advanced significantly in recent years."
Plural Verb:
* When "research" refers to specific studies or investigations: "These researches have yielded promising results."
Example:
* "The research is ongoing." (The research as a process)
* "Research has shown that exercise is good for health." (The field of research)
* "The researches are being conducted at the university." (Specific studies)
In most cases, "research" will be used in the singular form, referring to the overall process or field of study.