Verbos Modales

Verbos Modales

1. CAN

   • It is used regularly to discuss possibility and ability to make requests, and to ask or give permission
     • I can speak five languages
     • Can you help me?
     • I can not swim.
     • Can Peter speak German?

2. HAVE TO

   • We use the verb 'have to' need or obligation to express external, ie obligations imposed by others.
     • I have to study for the exam.
     • Does she have to open the window?
     • they don't have to wear
     • We have to stay here at least an hour

3. MUST

   • expresses a strong prohibition or obligation and some certainty
     • I must go the library
     • You must not talk to strangers
     • Everybody must wear a uniform
     • Must we do everything today?