Studying regular verbs in English is quite easy because you simply add -ed for both the past tense and the past participle. On the other hand, irregular verbs require study and might even be memorized individually.
At AHISK, students in grade 4 were taught irregular verbs as naughty verbs that refused to take -ed in the past tense.
Indeed, verbs are important because they help children communicate about different events in their lives by combining words into sentences.