which part of speech should be read first and after that which .pls give me a list for that how to read them so i can improve my english

Hello!!

The eight parts of speech are   noun, adverb, pronoun, preposition, verb, conjunction, adjective, interjection.There is no particular order in which you can practice these parts of speech separately because if you take a sentence,you will identify at least two to three parts of speech.The best way to improve your grammar in parts of speech is to take quizzes online and solve exercises in grammar book.One of the best books for practising grammar is Wren and Martin.Start solving the exercises from that book.Also join in your school or college english club to improve your english.All the best!!