These are the principal parts of a verb :
1. The simple form
2. The simple past
3. The past participle
4. The present participle
-Explain each of them....
1. The simple form
2. The simple past
3. The past participle
4. The present participle
-Explain each of them....
Ex: She sings in the choir every Sunday.
The simple past refers to an accomplished action
Ex: After trying for two hours, the computer engineers finally disabled the virus.
1) present participle
The present participle is often used when we want to express an active action. In English we add -ing to the infinitive of the verb.
2-1) past participle
The present participle is often used when we want to express a passive action.In English we add -ed to the infinitive of regular verbs. We use the 3rd column of the table of the irregular verbs.