So I heard this sentence of someone who was clearly a native speaker
Lets talk about the disadvantages, the first one being….
and he chose it instead of
Lets talk about the disadvantages, the first one is…."
which is what I would have gone with in such a sentence. So of course, I want to know why.
Best Answer
Believe it or not, this is incorrect. It's a run-on sentence. Instead of the comma to connect two independent clauses, there should be either a semicolon or a period, separating it into two sentences. Both of these are clunky and awkward. But there's a smoother way to do it.'
Not only is this grammatically correct (being the ketchup... is a participial phrase modifying one, an appositive), it's smooth and easy to say.