The plural is underwater Roller Coasters. The word underwater is an adjective describing roller coaster, adjectives don't take plural forms. Roller coaster is an open compound noun, the plural 's' goes on the end of the noun.
The noun 'roller coaster' has no standard collective noun since most roller coasters are not in a group. However, a collective noun is an informal part of language. Any noun the fits the situation can function as a collective noun; for example, a scream of roller coasters, a maze of roller coasters, a park of roller coasters, a tour of roller coasters, etc.
The noun rides is the plural for for the singular ride: We took a ride on the roller coaster. The rides that I don't like are the snake and the bat.The word rides is also the third person, singular present of the verb to ride: He rides the train to work.
No, the compound noun roller coaster is a common noun, a word for any kind of roller coaster anywhere.A proper noun is the name of a specific person, place, or thing; for example:Formula Rossa at Ferrari World inAbu DhabiKingda Ka at Six Flags Great Adventure in Jackson, NJCedar Point, 'Roller Coaster Capital of the World' in Sandusky, OHGreat Coasters International, Inc. (engineering) in Sunbury, PA
It is the singular possessive form of the noun coaster (inanimate possessive). Example: The coaster's cork bottom became stuck to the table.
"hey" is an interjection; "the" is a definite article in both instances; "old" is an adjective; "man", "lady", and the two word phrase "roller coaster" are all nouns; "and" is a coordinate conjunction; and "rode" is a verb (in its past tense). Those who do not accept two word phrases as nouns would instead consider "coaster" as a noun and "roller" as another adjective.
No, "young" is an adjective. It describes a noun. (Adverbs only describe a verb.) The young boy was too small to go on the roller coaster. ("Boy" is a noun, and "young" tells me more about him.)
The plural of the noun "half" is "halves."
The plural noun for path is paths. The plural noun for patch is patches.
The plural noun of general is generals. Generals is a regular plural noun.
No, Mice is a plural noun. Mouse is the singular noun.
It is a plural noun.
No, it is a possessive noun. Mothers is a plural noun.