Common Mistakes : Staff
Staff – Noun
BAD: The assembly and packing department has 50 staffs
GOOD: The assembly and packing department has 50 staff
GOOD: The assembly and packing department has a staff of 50
The noun staff refers to a whole group of people, (NOT a single person): ‘(The) staff at the Central Hospital have rejected the new pay offer.’ Several senior members of staff have opted for early retirement