yes they are
The word now is an adverb of time
NOW!!!! 'At this point in time' is a stupid Americanism of using more words , when one word is sufficient.
a word
for the time being = for now
You might be going for the word sequence.
(The word now means in the current time period, or immediately.)"Most countries in the world are now part of the United Nations.""You must leave the building now.""I lost my wristwatch, and now I cannot tell what time it is."
Yes.
chronological
Now you should write your own sentences. It's time for lunch now.
There is no past tense of the word "now," because past tense is a verb form that expresses action that has already occurred. "Now" is an adverb, not a verb. Adverbs modify a noun, verb or phrase. For example: In the question "What time is it now?" "now" modifies the noun "time." The antonym (opposite) of "now" is "then."
That is the correct spelling of "again" (another time, in repetition).
I have to go now; I have run out of time.