Park can be a verb or a noun. As a verb you would "Park the car." As a noun you would "Take the kids to the park."
parked is the past participle or the the simple past tense of the verb to park.
The word vandalism is a noun. For example: the community volunteered to clean the vandalism in the park.
adverb
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i want to know what part of speech is camping
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A noun.
Park is a noun in that sentence.
Walked is a verb.
As it is the name of place, then it is a proper noun.
The word "run" can be a verb (He will run to the park.) or a noun (He went on a run.).
The word vandalism is a noun. For example: the community volunteered to clean the vandalism in the park.
part of speech
The part of speech for this particular word is a noun.
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adverb
the part of speech sashay is a averb