Is or are

[Dzawislak]

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[bhaisahab]

Hi there....I was wondering if you could help me with a sentence...

"Is it bad when all I can think about when I read someone's Facebook status is how terrible their writing and grammar is?"

Should the "is" at the end be "are" instead?

You could use either depending on whether you are thinking of the two things as a whole or as separate things.