neither, none

[magdalena]

Which is more common after neither and none- plural or singular?

Neither of my ex-boyfriends was/or were really rich?
None of my friends has a car or none of my friends have a car?

[colloquium]

In both cases the general rule is:

Plural verb: informal.

Singular verb: formal.

I would say the plural verb is more common.

I'm not a teacher.