The subject in this sentence is "today," and the verb is "is".
Yes, certainly. 'Today is the first day of the rest of your life.'
Yes. Today is the subject; has been is the verb.
Today is a noun in that sentence.
Valentine's Day is the subject of that sentence.
gorgeous day = herrlicher TAg
Not really, although if you say this, you will probably be understood. The word "today" does not require an article (a, the). Thus, we would simply say "today", and we would not say "a today." On the other hand, we can say "a day," or we can say "the day," since the word "day" is a regular, countable noun.
Valentine's Day is the subject of that sentence.
The simple subject in the sentence is "Valentine's Day."
The word 'today' is an adverb and a noun.The noun 'today' is a word for this present day; a word for a thing.Examples:Today is the last day to get tickets. (noun, subject of the sentence)We've done enough for today. (noun, object of the preposition 'for')I saw Jane today at the mall. (adverb, modifies the verb 'saw')
Today is the coldest day of the year.
Mrs. Marcus is the complete subject of the sentence.
Valentine's Day is the simple subject