"Say" is a verb.
it depends what word it is it could be any part of speech depending on the sentence
All subjects are part of speech for they are all nouns.
The word escort is a verb in this sentence.
Working is a noun, but it could be an adjective you just have to look closely. It depends on the sentence.
"were always dismal" is more than one part of speech. were - verb always - adverb dismal - adjective
it depends what word it is it could be any part of speech depending on the sentence
All subjects are part of speech for they are all nouns.
No sentence has been provided but 'careered' is always a verb.
"It" is always a pronoun, unless within quotation marks.
Adjective, and it will always be one.
An adverb.
conjunction
Plan is a noun in that sentence.
"When" is an adverb when it begins a sentence.
"Could be" is a verb phrase that combines the modal verb "could" with the main verb "be." It functions as a verb in a sentence.
In a sentence, the word "action" can function as a noun.
The word escort is a verb in this sentence.