WITH TEMPERATURES BELOW FREEZING THIS MORNING AND THE POSSIBILITY OF SOME LIGHT FREEZING RAIN BETWEEN NOW AND NOON...MOTORIST ARE ADVISED TO EXERCISE CAUTION WHEN TRAVELING THIS MORNING...AS ANY PRECIPITATION COULD CAUSE ICY SPOTS TO DEVELOP...ESPECIALLY ON UNTREATED ROADWAYS...BRIDGES AND OVERPASSES.I don't get it. Could someone kindly tell me when it was taught, or when it was decided, that English words ending in -IST do not need an S to become pluralized?
It's motorists. There were two motorists on the road - NOT two motorist. There has never been a precedent for this type of construction.
Quit hoarding your S... use it!