Which is correct:
"A number of research have" or "A number of research has"?

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A number of research have

This phrase is incorrect. 'Research' is an uncountable noun and should be followed by a plural noun like 'studies' to match the plural verb 'have.'

Incorrect. Use 'a number of research studies have' instead.

Alternatives:

  • a number of research studies have
  • several research studies have
  • numerous research studies have
  • many research studies have
  • multiple research studies have

A number of research has

This phrase is incorrect. 'Research' is an uncountable noun and should be followed by a plural noun like 'studies' to match the plural verb 'have.'

Incorrect. Use 'a number of research studies have' instead.

Alternatives:

  • a number of research studies have
  • several research studies have
  • numerous research studies have
  • many research studies have
  • multiple research studies have
Both phrases are not correct. The correct form should be 'a number of research studies have.' 'Research' is an uncountable noun, so it does not take the plural form 'researches.' Instead, it should be followed by a plural noun like 'studies' to match the plural verb 'have.'

Last updated: March 24, 2024

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