To reply the question above, we can remind ourselves by mentioning some nouns, verbs, adjectives and adverbs...
I. Nouns are categorized within things, people around us such as a table, a chair, a ruler, a sharpener. Furthermore, you can also mention things in your living room: a set of sofa, a television, a fan, a picture etc. you can also mention things in the kitchen, in your bedroom even your bathroom. Things that we see on the way you go are categorized as nouns, too.
People, profession, fruits, food and drinks are nouns,too. All the things that we can touch are nouns.
In other hand, we can mention some things that we can't touch but categorized as nouns, such as weakness, loneliness, government, crime, etc..
II. Verbs are activities we do. For examples: to wake up, take a bath, have breakfast, go to school, to play, to study, to sleep, to dream, to sit, to walk, to work, to read, to write, to send etc...
III. Adjectives are words that describes a noun or pronoun. a big dog, quick, obvious, boring, purple, fat, thin, long, old, smart, lazy, diligent, etc,..
