1. Four Principal Parts of Verbs REGULAR Verbs IRREGULAR Verbs

2. Regular Verbs A verb has four principal parts: the present, the present participle, the past, and the past participle. The past and past participle of a regular verb are formed by adding -ed or -d to the present form. Most verbs are regular.

3. Regular Verbs

4. Irregular Verbs The past and past participle of an irregular verb do not follow the pattern for spelling verbs by adding -ed or -d to the present form.

5. Irregular Verbs

6. ALL Irregular Verbs