WRONG:

WHO’S EVER

RIGHT:

WHOEVER’S

In speech people sometimes try to treat the word “whoever” as two words when it’s used in the possessive form: “Whose-ever delicious plums those were in the refrigerator, I ate them.” Occasionally it’s even misspelled as “whoseever.” The standard form is “whoever’s,” as in “Whoever's plums those were. . . .”

List of errors