Let us determine how much you already know about using the past tense form of the verbs. Regular verbs in the past tense are formed by adding d/ed to the base form, while irregular verbs are formed by changing spellings. Pre-test A. The following sentences have verbs in the past tense form. Read then encircle the verbs in each sentence. 1. Restaurants closed because of the coronavirus pandemic. 2. My father lost his job during the community quarantine. 3. The doctors found the source of the virus. 4. Airlines stopped bringing people to different places. 5. The people stayed home to prevent the spread of the disease.​