I can assert you can assert he can assert we can assert you can assert they can assert
Forma con V-ing
I can be asserting you can be asserting he can be asserting we can be asserting you can be asserting they can be asserting
Perfecto
I can have asserted you can have asserted he can have asserted we can have asserted you can have asserted they can have asserted
Perfecto con V-ing
I can have been asserting you can have been asserting he can have been asserting we can have been asserting you can have been asserting they can have been asserting
Negación
Forma simple
I can't assert you can't assert he can't assert we can't assert you can't assert they can't assert
Forma con V-ing
I can't be asserting you can't be asserting he can't be asserting we can't be asserting you can't be asserting they can't be asserting
Perfecto
I can't have asserted you can't have asserted he can't have asserted we can't have asserted you can't have asserted they can't have asserted
Perfecto con V-ing
I can't have been asserting you can't have been asserting he can't have been asserting we can't have been asserting you can't have been asserting they can't have been asserting
Forma interrogativa
Forma simple
can I assert? can you assert? can he assert? can we assert? can you assert? can they assert?
Forma con V-ing
can I be asserting? can you be asserting? can he be asserting? can we be asserting? can you be asserting? can they be asserting?
Perfecto
can I have asserted? can you have asserted? can he have asserted? can we have asserted? can you have asserted? can they have asserted?
Perfecto con V-ing
can I have been asserting? can you have been asserting? can he have been asserting? can we have been asserting? can you have been asserting? can they have been asserting?
Forma interro-negativa
Forma simple
can't I assert? can't you assert? can't he assert? can't we assert? can't you assert? can't they assert?
Forma con V-ing
can't I be asserting? can't you be asserting? can't he be asserting? can't we be asserting? can't you be asserting? can't they be asserting?
Perfecto
can't I have asserted? can't you have asserted? can't he have asserted? can't we have asserted? can't you have asserted? can't they have asserted?
Perfecto con V-ing
can't I have been asserting? can't you have been asserting? can't he have been asserting? can't we have been asserting? can't you have been asserting? can't they have been asserting?