are going is a verb phrase. Are is a be verb, going is a present participle (verb).
The part of speech for this particular word is a noun.
the part of speech sashay is a averb
the part of speech for hand is a noun or verb
Prefixes do not have their own part of speech.
the part of speech in core is a noun
verb
adverb
Are going is the present progressive tense of the verb go. It is called a verb phrase.
The word "roundup" is a noun used to describe the event of gathering or herding animals, such as cattle, typically for inspection or sorting purposes. In the sentence "Today they were going on a roundup," "roundup" is the last word of the sentence.
the subject
Frantic is an adjective
He's is a contraction of two parts of speech, he (pronoun) and is (verb) or has (verb). He's (he is) going to the store after he's (he has) finished the housework.
noun, its a person place or thing.
part of speech
The part of speech for this particular word is a noun.
In this sentence "it" is used as the subject of an impersonal verb and is therefore a pronoun.
adverb