doubts about my adjectives

[ieasy]

I've always heard the adjectives are always used before the nouns and they must be in the singular. eg: "beautiful girls" and not "beautifuls girls". But what about the following words:
clothes hanger
graphics card
pants suit
sales commission
savings account
girls school
In theses cases the words "clothes", "graphics","pants","sales","savings","girls" are adjectives aren't they??

[mykwyner]

There is no rule that adjectives cannot be in the plural. The rule is that adjectives do not have to agree in number with the nouns that they modify.

Originally Posted by ieasy

I've always heard the adjectives are always used before the nouns and they must be in the singular. eg: "beautiful girls" and not "beautifuls girls". But what about the following words:
clothes hanger
graphics card
pants suit
sales commission
savings account
girls school
In theses cases the words "clothes", "graphics","pants","sales","savings","girls" are adjectives aren't they??

I agree with mykwyner and I`ll add that the words clothes, graphics, pants, sales, savings, girls are NOUNS attributively used. They are attributes.

Regards,