Jose A. Carillo
In the early 2000s, I had a South Korean business associate who had rightfully earned the bragging right of getting perfect scores in every major business English proficiency test. Let’s call him Heonwoo K. An AB English graduate with high honors in his home country, he was superb in identifying the English parts of speech, in diagramming sentences, in spotting subject-verb disagreements, and in correcting grammar and structural errors in test sentences or passages.