Parts of Speech Discussion

I have learned parts of the speech and that we have 8 parts of speech that is:    1) Nouns -Common, concrete/abstract              2) Adjectives -Comes before a noun.             3)pronouns-takes a nouns place ,can be used with articles.                                              4)pronouns-takes nouns place ,can come right after adjective example He,It,She.                                                            5)Verbs-used with adverbs                             6) adverbs -Describe verbs example always.                                                                  7) Conjunction - use to connect phrases or sentences.                                          8) preposition -Shows relationship of place, time or location between nouns and pronouns.                                                          9) Interjection -Spoken or written expression of emotion.