Either/or and Neither/nor
Either/or and neither/nor connect two balanced
words, clauses or phrases. They are called correlative conjunctions.
Singular or plural verb?
When two singular subjects are connected by
either/or or neither/nor, use a singular verb.
Example: Either Sally or Peter is
invited.
Example: Neither Sally nor Peter is
invited.
If one of the subjects is plural, the verb
agrees with the closest subject.
Example: Either the secretaries or manager
decides the menu.
Example: Neither the bats nor the cat wakes
me at night.