Modal verbs

Can, may, We can compare may and can. Must. Must and May compared. To have to. To be to. Must, to have to and to be to compared. Ought to. Shall and should. Must, Should and ought to compared. Should + Perfect infinitive.

22.07.2006 | Английский | Иностранные языки и языкознание | Язык: английский | Просмотры: 116