Publicado no e em "Educação", idioma — English. 13 páginas.
This topic is the main for those beginners who want to know all and more about grammar.In the same way that we use modal verbs to say how certain we are about things
in the present we can also
use them to speculate
about the past.
There are 4 types of modals in
the past that have different
concept of using in everyday and
academic sense. Mais
