Which is correct:
(1) He is the only one of those men who is always on time.
(2) He is the only one of those men who are always on time.
I've heard that (1) is correct by most grammar sites, but if you reword (2) it's (2'): "Of those men who are always on time he is the only one."
Best Answer
Choice (1) is definitely correct. The "is" ultimately refers back to the antecedent "He," the subject of the sentence. Your reworded example would simply invert the original, but would not change the grammatical structure (i.e., "is" is still singular because "he is the only one" is an independent clause with "he" still the subject).