Matching Pairs Modal verbs. Giving an advice: should, shouldn't, ought to, oughtn't to.Online version Match the statements with the corresponding advice. by Clara Cervera 1 My mother has got a terrible headache. 2 My son went to the dentist because he as a cavity. 3 We are often late for school. 4 My friends laugh at me because I don't have expensive clothes. 5 My brother gets very bad marks at school. You oughtn't to worry about it. We should get up earlier. She ought to take medicine. He should study harder. He shouldn't eat so much sweets.