I have learned following eight parts of speech which all are important while forming statements.
Noun, Pronoun, Verb, Adverb, Adjective, Conjunction, Interjection & Preposition.
Noun: Name, Place, Things Ideas
Pronoun: I, You, We, He, She, They, It,
Verb: Walk, Talking, Cooking, Running etc.
Conjunction: For And, Nor, But, OR, Yet
Interjection: Wow, Yew, Oops, Um etc.
Adverb: Slowly, Quickly Quietly, Carefully, Badly Etc.
Adjective: Good, Bad, Tall, Smart, Beautiful etc.
Preposition: On, In, At, Over, Under, To, Of, With, For Etc.