I can retard you can retard she can retard we can retard you can retard they can retard
Forma con V-ing
I can be retarding you can be retarding she can be retarding we can be retarding you can be retarding they can be retarding
Perfecto
I can have retarded you can have retarded she can have retarded we can have retarded you can have retarded they can have retarded
Perfecto con V-ing
I can have been retarding you can have been retarding she can have been retarding we can have been retarding you can have been retarding they can have been retarding
Negación
Forma simple
I cannot retard you cannot retard she cannot retard we cannot retard you cannot retard they cannot retard
Forma con V-ing
I cannot be retarding you cannot be retarding she cannot be retarding we cannot be retarding you cannot be retarding they cannot be retarding
Perfecto
I cannot have retarded you cannot have retarded she cannot have retarded we cannot have retarded you cannot have retarded they cannot have retarded
Perfecto con V-ing
I cannot have been retarding you cannot have been retarding she cannot have been retarding we cannot have been retarding you cannot have been retarding they cannot have been retarding
Forma interrogativa
Forma simple
can I retard? can you retard? can she retard? can we retard? can you retard? can they retard?
Forma con V-ing
can I be retarding? can you be retarding? can she be retarding? can we be retarding? can you be retarding? can they be retarding?
Perfecto
can I have retarded? can you have retarded? can she have retarded? can we have retarded? can you have retarded? can they have retarded?
Perfecto con V-ing
can I have been retarding? can you have been retarding? can she have been retarding? can we have been retarding? can you have been retarding? can they have been retarding?
Forma interro-negativa
Forma simple
can I not retard? can you not retard? can she not retard? can we not retard? can you not retard? can they not retard?
Forma con V-ing
can I not be retarding? can you not be retarding? can she not be retarding? can we not be retarding? can you not be retarding? can they not be retarding?
Perfecto
can I not have retarded? can you not have retarded? can she not have retarded? can we not have retarded? can you not have retarded? can they not have retarded?
Perfecto con V-ing
can I not have been retarding? can you not have been retarding? can she not have been retarding? can we not have been retarding? can you not have been retarding? can they not have been retarding?