S-V Agreement

Are these correct?

Are John and Lynn coming?
I say .

John or Lynn is/are coming.
(I say "is" is correct here.)

John and Lynn are coming.
I say .

He and Mike hate each other.
I say .

Good?

Thanks.

 

All present and correct. I've rephrased each sentence to show how I'd work out whether it's plural or singular.

 

Thanks.

 

Subject/verb agreement is fine, but your punctuation isn't.

"Are John and Lynn coming?" I say.

"John and Lynn are coming," I say.

"He and Mike hate each other," I say.
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And, "John or Lynn is coming," is an awkward sentence:

Either John or Lynn is coming.
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