Modal Verbs English app for iPhone and iPad

Modal Verbs In English app help to people to learn all modal verbs They can learn all forms of modal verb statements. And also this app will help to people to learn how to use modal statements in English. One of the best of teaching is method is teach with Formulas.

Can:
-Use for something happen and use for someone has ability to do
Could:
Past form of can and use in past tense and past perfect
May:
Use for something happening for weaker condition and use for asking permission
Should:
Use for giving advice and say to someone to do something is better for him//her
Must:
Use for possible situation and giving a order to someone to do something. Sometimes use to say something is happen for strong condition.