I can unify you can unify he can unify we can unify you can unify they can unify
Forma con V-ing
I can be unifying you can be unifying he can be unifying we can be unifying you can be unifying they can be unifying
Perfecto
I can have unified you can have unified he can have unified we can have unified you can have unified they can have unified
Perfecto con V-ing
I can have been unifying you can have been unifying he can have been unifying we can have been unifying you can have been unifying they can have been unifying
Negación
Forma simple
I can't unify you can't unify he can't unify we can't unify you can't unify they can't unify
Forma con V-ing
I can't be unifying you can't be unifying he can't be unifying we can't be unifying you can't be unifying they can't be unifying
Perfecto
I can't have unified you can't have unified he can't have unified we can't have unified you can't have unified they can't have unified
Perfecto con V-ing
I can't have been unifying you can't have been unifying he can't have been unifying we can't have been unifying you can't have been unifying they can't have been unifying
Forma interrogativa
Forma simple
can I unify? can you unify? can he unify? can we unify? can you unify? can they unify?
Forma con V-ing
can I be unifying? can you be unifying? can he be unifying? can we be unifying? can you be unifying? can they be unifying?
Perfecto
can I have unified? can you have unified? can he have unified? can we have unified? can you have unified? can they have unified?
Perfecto con V-ing
can I have been unifying? can you have been unifying? can he have been unifying? can we have been unifying? can you have been unifying? can they have been unifying?
Forma interro-negativa
Forma simple
can't I unify? can't you unify? can't he unify? can't we unify? can't you unify? can't they unify?
Forma con V-ing
can't I be unifying? can't you be unifying? can't he be unifying? can't we be unifying? can't you be unifying? can't they be unifying?
Perfecto
can't I have unified? can't you have unified? can't he have unified? can't we have unified? can't you have unified? can't they have unified?
Perfecto con V-ing
can't I have been unifying? can't you have been unifying? can't he have been unifying? can't we have been unifying? can't you have been unifying? can't they have been unifying?