have or has?

[ugly_olive]

Forgive me if this is a repeat question. I searched the threads and couldn't find a definite answer. Anyway, here is the sentence:

"If you or your mother have/has any further questions, you may call..."

Any help and/or explanation is truly appreciated. Thanks!

 

[Violo*]

I would use have, because it refers to both, you don't mind if it's one or another. So, I understand it as two people, so it's plural sense.

 

[KHS]

Forgive me if this is a repeat question. I searched the threads and couldn't find a definite answer. Anyway, here is the sentence:

"If you or your mother have/has any further questions, you may call..."

Any help and/or explanation is truly appreciated. Thanks!

In theory (according to college writing handbooks), in an "or" situation, the noun closest to the verb is supposed to control the agreement.
Look at example #3 on this webpage:
http://owl.english.purdue.edu/handouts/esl/eslsubverb.html

Personally, I try to write my sentences in way that avoids the issue - so I would change it to, "If you and your mother have...."

 

[ugly_olive]

That's perfect! Thanks a lot!