I think its not important you just need to know how to use them in a sentence and kno what they mean there's no point in learning why there called verbs or proper nouns you just need to know "How do I use this noun in a sentence and sound correct?" that's what I think.
A verb is a word that originates from the Latin term Verbum. It is a portion of a speech that is related to express excitement or move an object in motion. A verb must have particular tense i.e. Present , past or future. A verb is a pretty significant part of any sentence. There are two main purposes;
That a verb can perform: there are those verbs that place an object into action.
Other verbs allow more explanation on the very object.
Mama's plant symbolizes her anger. How is Mama's plant symbolic? It represents the importance of not giving up under tough circumstances. It reminds us that Mama is a good gardner.