1. 'Could you all put your pens down?' said the teacher to us. (request+should clause)
2. The doctor says it would be better if Sam took more exercise. (recommended+subjunctive)
3. 'I think smokin should be banned in all public places,' said the minister. (propose+subjunctive)
1. The teacher requested that we put our pens down.
2. The doctor recommended Sam to take more exercise.
3. Minister proposed that smoking should be banned in all public places.