SINGULAR NOUNS
Neither of the men let failure get them down.
All (of) their hard work paid off.
Each entrepreneur was successful.
Both products got off to a good start.
UNCOUNTABLE NOUNS
Every restaurant rejected the recipe.
Both (of) these men became billionaires.
BOTH (=TWO)
All successful people have a vision.
No restaurant accepted the recipe.
PLURAL NOUNS
None of their hard work was wasted.
None of these people graduated from college.
No entrepreneur wants to fail.
All (of) these people were successful.
No successful people get ahead easily.
Neither product was a success at first.
