A recent poll found that two-thirds of the population say blah, blah, blah...
A recent poll found that two-thirds of the population says blah, blah, blah...
My ears tell me it is "say," and my wife agrees. She works with words all day, every day. Perhaps it is the letter "s" at the end of "two-thirds" causing me to hear a plural.
"Population "would be a collective singular, while the quantity of two-thirds might not.
MS Word does not like "say," and flags it.
Half of the population say or says?
One fourth of the population say or says?
Where are Alexa and Hey Sal? They will know.