Advanced Noun Rules

Rule 1: Use a/an with Uncountable Nouns ONLY when preceded by a qualifying adjective.

Rule 2: When a Noun modifies another Noun, the modifier remains singular.

Rule 2
A five-year plan
A five-years plan
Reason: “Year” acts as an adjective describing the plan.

Rule 1
A deep understanding
Reason: “Understanding” is uncountable, but “deep” allows the article ‘a’.

Rule 2
A ten-dollar note
A ten-dollars note
Reason: The value (ten-dollar) modifies the noun (note).

Rule 2
Two-hour delay
Two-hours delay
Reason: “Hour” modifies “delay.” Adjectives don’t take plural ‘s’.

Rule 1
A quality education
Reason: Education is uncountable; ‘quality’ specifies the type.

Rule 2
Eye surgery
Eyes surgery
Reason: Even though we have two eyes, the modifier noun stays singular.

Rule 2
A three-man committee
A three-men committee
Reason: “Man” is the singular modifier for the committee.

Rule 1
A wonderful weather
Note: This is a rare stylistic exception used in literature/emphasis.

Rule 2
Toothbrush
Teethbrush
Reason: You brush many teeth, but the modifier is always “tooth.”

Rule 2
A six-mile run
A six-miles run
Reason: “Six-mile” describes the distance of the run.

Noun advance