When everything, something, nothing, everyone, someone, no one. Is the predicate singular or plural? I remember it should be singular, but yesterday I learned that when none is the subject, it can be singular or plural

When everything, something, nothing, everyone, someone, no one. Is the predicate singular or plural? I remember it should be singular, but yesterday I learned that when none is the subject, it can be singular or plural

Everything, something, nothing, everyone, someone and no one are used as subjects and predicates
None as subject predicate can be singular or plural