"Grammar and spelling is a strong area of mine"
"Grammar and spelling are a strong area of mine".
Considering both grammar and spelling are singular nouns, I have always used "is", but I am unsure about it. Does the predicate matter at all? [/QUOTE] It's the subject that decides which form of the full verb we use. If you consider Grammar and Spelling to be so closely related as to make one particular area, then you could use the singular - rather as we say "fish and chips is my favourite meal" - so, "Grammar and Spelling is a strong area of mine".
'a + b are a singular noun is a bit of an odd mixture, though you will hear it.
For instance, if I said: Grammar and spelling are both strong areas of mine. Would that be correct as well?[/QUOTE]That's fine.
Student or Learner