You didn't say if you meant the phrase "in the dark" as the literal meaning or the idiomatic meaning.
Literal: "When the moon sets, we will be in the dark."
Idiom: "Bill is mad at me, but I am in the dark about the reason."
The verb in the sentence is was, a linking verb(neighborhood=dark).
"It is dark in the night." is a correct sentence if you remember to capitalize the first letter of the sentence and put a period at the end.
The dark horse was beautiful.
Adj. in the sentence are as follows: dark, still, autumn.
"dark billowing clouds" isn't a sentence. Dark and billowing are adjectives describing clouds, a plural noun.
"The day was sunny and did not match our dark, dark souls."
Example sentence - The fur on the bear is dark brown.
End the sentence with a period. No other punctuation is necessary.
"As i went outside to take out the trash, everything was dark."
You is the subject in that sentence. The subject is whois performing the action.
what is the preposition and object of the sentence "i am going into the dark cave and tunnel
There was a storm as dark as night.