The street is dirty.(noun)I
It is dirty. (pronoun)
Watch out! The street is dirty. (Interjection)
The street cleaner swept the street quickly. (adverb)
Now the street is clean..(adjective)
The children played on the clean streets. (verb)
The people thanked the street cleaner, and gave him a thank you gift card. (conjunction)
After that, the people walked back to their tiny houses. (preposition)
The clean street is in the next town.. prepositionall phrase)