Musn´t and must , have to and don´thave to

Musn´t and must , have to and don´thave to

1. must and have to: something is necesary

   • have/has to+verb

2. don´t have to: something is not necesary

   • dont / doesnt have to+verb

3. musn´t : es prohibicion

   • must/musnt+verb