Is it grammatically correct? I'm not sure because smoking is verb and academic achievement is a noun. If it's not what is the correct sentence?

2 Answers 2


I would choose "relationship between smoking and academic achievement."

Smoking is a gerund here, an -ing verb acting as a noun to describe the act of doing something, so comparing it to "academic achievement" is appropriate. As mentioned by tunny, this is a sentence fragment as it stands, not a complete sentence.

"The relationship between smoking and academic achievement is..."


It is not a complete sentence, but it is correct as headline or part of a sentence. Smoking is a gerund; gerunds are parts of the verb which have many of the properties of a noun.

  • so you're saying that it is correct?
    – stormrage
    Commented Nov 10, 2014 at 11:34
  • @ storm Rage. I am just adding that to the answer.
    – tunny
    Commented Nov 10, 2014 at 12:18

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