| This course presents the past participle, the present perfect, the past simple and the imperative forms of verbs. |
| The second type of participle, the past participle, is a little more complicated, since not all verbs form the past tense regularly. |
| There are about 24 verbs in English that have identical past participle, preterite, and plain form. |
| Completed action is denoted by special verb-phrases made by prefixing to the past participle some form of the auxiliary verb have. |
| Thus, in all verbs the preterite and the past participle were the same and ended in ed. |
| Are you hesitating about the agreement of a past participle, the correct use of a term or the spelling of a word? |
