Is walking a proper noun

Answer 1

No, the noun 'walking' (a gerund) is a common noun, a word for any event of walking of any kind.

A proper noun is the name of a specific person, place, thing, or a title; for example:

Walking Ridge Street, Crystal Lake, IL

The Walking Company (shoe stores), Santa Barbara, CA

Dom's Dog Walking, Latham, NY

"Dead Man Walking", 1995 movie with Susan Sarandon and Sean Penn

Answer 2

No, the noun 'walk' is a common noun, a general word for an instance of going by foot; a word for a path or a course to travel by foot; a word for a distance to go by foot; a word for a manner of movement by foot; a word for a social or economic status; a word for any walk of any kind.

A proper noun is the name or title of a specific person, place, or thing.

The word 'walk' is also a verb: walk, walks, walking, walked.

Answer 3

Proper nouns are names. Unless you know a person or a place named Walk, it is not a proper noun.