subject
noun
Noun, and part of an adjectival phrase.
"It" is always a pronoun, unless within quotation marks.
I believe it would be an adjective.
An auxiliary verb.
Past is being used as a noun in that sentence.
In the sentence "The time is up," the word "up" functions as an adverb. It indicates the completion or expiration of time, modifying the verb "is."
Then is an adverb of time answering the question when.
Adjective. A+
No, a word cannot be two parts of speech at the same time. A word has a specific part of speech based on its function in a sentence, such as noun, verb, adjective, etc.
Time can be used as a noun and a verb. Noun: Do you have the time? Verb: The coach timed our laps. Good is an adjective. We have a good coach.
"Month" is a noun in that sentence, and just now, I can't think ofa case where that word is used as any other part of speech.