Conjugación del verbo inglés CAN HAPPEN
Verbo regular: happen - happened - happened
Afirmación
Forma simple
-
-
it
can happen
-
-
-
Forma con V-ing
-
-
it
can be happen
ing-
-
-
Perfecto
-
-
it
can have happen
ed-
-
-
Perfecto con V-ing
-
-
it
can have been happen
ing-
-
-
Negación
Forma simple
-
-
it
cannot happen
-
-
-
Forma con V-ing
-
-
it
cannot be happen
ing-
-
-
Perfecto
-
-
it
cannot have happen
ed-
-
-
Perfecto con V-ing
-
-
it
cannot have been happen
ing-
-
-
Forma interrogativa
Forma simple
-
-
can it happen?
-
-
-
Forma con V-ing
-
-
can it be happen
ing?
-
-
-
Perfecto
-
-
can it have happen
ed?
-
-
-
Perfecto con V-ing
-
-
can it have been happen
ing?
-
-
-
Forma interro-negativa
Forma simple
-
-
can it not happen?
-
-
-
Forma con V-ing
-
-
can it not be happen
ing?
-
-
-
Perfecto
-
-
can it not have happen
ed?
-
-
-
Perfecto con V-ing
-
-
can it not have been happen
ing?
-
-
-