Explanation of the differences between "Regular and Irregular verbs" for class 8 junior high school

Regular verbs are verbs that are regular and very easy to know and memorize, for example: "Walk-Walked", the past form of "Walked" is taken from the word "Walk" and adds "-ed".
Meanwhile, if we want to change or find a word that ends with "Y" like "Study" we have to change the "Y" to "I" then add "-ed" like "Study-Study".
Irregular verbs are words that are irregular and must be properly known and must be properly memorized and understood, irregular verbs do not follow "-ed" like "Go-Went".
Thankyou :) ..