No, not unless that is someone's name.
Yes, the noun 'bike' is a common noun, an informal word for bicycle, a word for any bike of any kind.A proper noun is the name of a specific person, place, or thing; for example:American River Bike Trail, Sacramento, CAEast Bike Street, Bremen, IN or Road Bike Drive, Jonesville, VABlue Star Bike Shop, San Antonio, TX
The possessive form for the noun 'youth' is youth's: A car hit the youth's bike.
As a name of a road , Park Avenue', it is a proper noun, and both words star with a capital letter. However, when used separately, as 'the park, or 'the avenue', they are common nouns and so not need a capital letter.
Yes, bike's is the possessive form for the noun bike; for example the bike's tires.
The noun 'bike' is a common, concrete, singular noun.
Yes, bike's is the possessive form for the noun bike; for example the bike's tires.
Pencil proper or common noun
Exxon is a proper noun
proper noun
Yes, the word 'Ali' is a proper noun, the name of a person.A proper noun is the name or title of a specific person, place, or thing.A proper noun is always capitalized.
proper noun
Proper noun