In English, there are regular and irregular types of verbs. The past tense of the regular verb (simple past) and the past particle form are corrected by adding one of the suffixes d, -ed to the end of the verb. (Example: I work, I worked)
Both past simple and past particle forms of irregular verbs are constructed in a special way, and it is necessary to memorize these forms for each irregular verb.
The following cards show 30 irregular verbs, on the back of the flashcard is first the past simple form of the verb and then the particle form.
Past simple and past participle forms of irregular verbs