SHOULDN'T
1. You shouldn't run in the halls.
2. You shouldn't litter in the school.
3. You shouldn't shout in the school.
4. You shouldn't come sick in the school.
5. You shouldn't ignore these rules.
SHOULD
1. You should keep classroom in the purity.
2. You should respect teachers and other pupils.
3. You should go to classes regularly.
4. You should wear school uniform.
5. You should adhere to the rules.