Relacionar Columnas Modal verbsVersión en línea Small activity to practice modals for obligation por Adamaris Dominguez 1 It's essential that he loses weight. 2 Wearing a helmet is essential 3 Taking vitamins isn't essential. 4 Eating too much sugar isn't allowed. 5 It's essential she exercises every day. 6 Running isn't allowed until your leg is better. You must not run while your leg is healing. She has to exercise every day. Everyone must wear a helmet. You mustn't eat too much sugar. He has to lose weight. I don't have to take vitamins.