So how would you say 'this is not work,' instead of 'this does not work'?
Can you explain why? Are nouns ever with an ה, and how would it work with an masculine noun?
Yes, nouns can have a ה . :) For instance if I said "The work" it would be "העבודה".
Masculine nouns would be done similarly. "The dog" would be "הכלב." But "This is not a dog" would be "זה לא כלב". Does that help you?
It had work as a choice. So when would it be applicable here then? There's work. I work. You will work. He doesn't work. It used to work. I have been at work (not a verb, but the rest?)