Noun - Nature - The nature is beautiful.
Pronoun - She - She was depressed.
Verb - went - I went to see a doctor.
Adjective - natural - It is natural for us to feel hungry.
Adverb - easily - He runs back and forth so easily.
Preposition - beyond - I went beyond the walls.
Conjunction - for - Forgive me for I have sinned.
Interjection - Oops - Oops! Sorry for bumping on you.