I have this part of a sentence for a college essay I am writing:
Penn’s plethora of student-run groups are a well-suited outlet to continue my extracurriculars.
Do I use are or is after groups? When speaking it, it sounds like “are” is correct. However, grammarly suggests otherwise. I understand that plethora is non-plural, but does the student-run groups after change the subject?
Sorry, I am pretty bad with this grammar stuff, anything helps!
A dictionary perusal reveals plethora is an uncountable or singular noun: a noun that has no plural.
Penn’s plethora of student-run groups is a well-suited outlet to
continue my extracurriculars.
is correct. Plethora is the noun. Prepositional is “of student run groups”.