The 6th pattern for forming the basic simple sentences has 3 parts: subject, predicator, and adverbial. The subject performs the action of the sentence. The predicator is the verb and in this pattern; it is a linking verb which links the adverbial to the sentence. The adverbial performs the function of the adverb which to supply various information about the place, time, manner of an action. The adverb, adverbial phrase, noun, noun phrase, and prepositional phrase also perform the function of an adverbial in this pattern.

1. I slept there: "there" is the adverbial.
2. I slept in the coolest room: "in the coolest room" is a prepositional phrase functioning as an adverbial.
3. I danced yesterday: "yesterday" is a noun functioning as an adverbial
4. I danced all night: "all night" is a noun phrase functioning as an adverbial.

"There" and "in the coolest room" show adverb of place. "Yesterday" and "all night" show adverb of time.

TAKE AWAY: It always seems impossible until it’s done. ---Nelson Mandela