The word police is predominantly a noun. Police can also be a verb.
The word trouble can be used as: A noun :- He was in trouble with the police. A verb :- My bunions trouble me.
part of speech
The part of speech for this particular word is a noun.
what part of speech is beneath
what part of speech is work
adverb
accomplishment speech
Suspect is a verb and a noun.I suspect that Bob committed the crime. (verb)The police have a suspect in custody, but it's not Bob. (noun)
Sashay is a verb. It means to walk in an exaggerated, showy manner, often with hip swaying.
"Did not" or "didn't" is a contraction of the auxiliary verb "did" and the adverb "not," forming a negative past tense construction in English.
The word speech is a noun.