Conjugation of "Shall" and "Should" - Past Tense - 137 Edit "Education is from Womb to Tomb!" ❤❤❤ ❤❤❤ ❤❤❤ ❤❤❤ ❤❤❤ Conjugation of "Shall" and "Should".Sinhala / Sinhalese Lesson. Past Tense. Past Tense. Singular. Plural. I should. We should. You should. You should. Thou shouldst. Ye should. He, She or It should. They should. Next Lesson Prev Lesson