“Have to, should and must”

• Each month I must get hair cut.
• Sometimes I tell my dad he should get fit.
• In my house, I have to make the bed every day before go to school and wash the dishes after luch.
  • At shcool don’t have to use my mobile phone.
  • If I want to get good marks, I must study hard.

• I don’t have to throw litter in the central square.
• All drivers must respect the traffic life.