Normally if is a conjuction, but is used as a noun in the expression ifs and buts, e.g. no ifs and buts.
Memory is a noun so that can be used as a noun. Of and in are prepositional words and form a preposition when used in a phrase. So while there is a noun in the phrase, the phrase cannot be used as a noun.
A collective noun is a noun used for a group of people or things the noun group is a generic collective noun which can be used for anything
No. "Angry" CANNOT be used as a noun. "Angry" is an adjective. "Anger" is the noun.
The noun "volley" is used as a collective noun for a volley of shots; a term used for gunfire or for tennis.
A noun is used as the subject of the object of a sentence or phrase.
The most common noun used after the noun 'customer' is service, forming the compound noun 'customer service'.
US is an abbreviation for the proper noun United States. The abbreviation US is used as a noun is used.
The noun 'basket' is used as a collective noun for a basket of plums and a basket of cheer.
It can be. It can be used as a noun or a verb.
It is a noun
No, the noun species is not used as a collective noun.
A pronoun is used to take the place of or stand in for a noun.