I can swap you can swap he can swap we can swap you can swap they can swap
Forma con V-ing
I can be swaping you can be swaping he can be swaping we can be swaping you can be swaping they can be swaping
Perfecto
I can have swaped you can have swaped he can have swaped we can have swaped you can have swaped they can have swaped
Perfecto con V-ing
I can have been swaping you can have been swaping he can have been swaping we can have been swaping you can have been swaping they can have been swaping
Negación
Forma simple
I can't swap you can't swap he can't swap we can't swap you can't swap they can't swap
Forma con V-ing
I can't be swaping you can't be swaping he can't be swaping we can't be swaping you can't be swaping they can't be swaping
Perfecto
I can't have swaped you can't have swaped he can't have swaped we can't have swaped you can't have swaped they can't have swaped
Perfecto con V-ing
I can't have been swaping you can't have been swaping he can't have been swaping we can't have been swaping you can't have been swaping they can't have been swaping
Forma interrogativa
Forma simple
can I swap? can you swap? can he swap? can we swap? can you swap? can they swap?
Forma con V-ing
can I be swaping? can you be swaping? can he be swaping? can we be swaping? can you be swaping? can they be swaping?
Perfecto
can I have swaped? can you have swaped? can he have swaped? can we have swaped? can you have swaped? can they have swaped?
Perfecto con V-ing
can I have been swaping? can you have been swaping? can he have been swaping? can we have been swaping? can you have been swaping? can they have been swaping?
Forma interro-negativa
Forma simple
can't I swap? can't you swap? can't he swap? can't we swap? can't you swap? can't they swap?
Forma con V-ing
can't I be swaping? can't you be swaping? can't he be swaping? can't we be swaping? can't you be swaping? can't they be swaping?
Perfecto
can't I have swaped? can't you have swaped? can't he have swaped? can't we have swaped? can't you have swaped? can't they have swaped?
Perfecto con V-ing
can't I have been swaping? can't you have been swaping? can't he have been swaping? can't we have been swaping? can't you have been swaping? can't they have been swaping?