I can erect you can erect she can erect we can erect you can erect they can erect
Forma con V-ing
I can be erecting you can be erecting she can be erecting we can be erecting you can be erecting they can be erecting
Perfecto
I can have erected you can have erected she can have erected we can have erected you can have erected they can have erected
Perfecto con V-ing
I can have been erecting you can have been erecting she can have been erecting we can have been erecting you can have been erecting they can have been erecting
Negación
Forma simple
I can't erect you can't erect she can't erect we can't erect you can't erect they can't erect
Forma con V-ing
I can't be erecting you can't be erecting she can't be erecting we can't be erecting you can't be erecting they can't be erecting
Perfecto
I can't have erected you can't have erected she can't have erected we can't have erected you can't have erected they can't have erected
Perfecto con V-ing
I can't have been erecting you can't have been erecting she can't have been erecting we can't have been erecting you can't have been erecting they can't have been erecting
Forma interrogativa
Forma simple
can I erect? can you erect? can she erect? can we erect? can you erect? can they erect?
Forma con V-ing
can I be erecting? can you be erecting? can she be erecting? can we be erecting? can you be erecting? can they be erecting?
Perfecto
can I have erected? can you have erected? can she have erected? can we have erected? can you have erected? can they have erected?
Perfecto con V-ing
can I have been erecting? can you have been erecting? can she have been erecting? can we have been erecting? can you have been erecting? can they have been erecting?
Forma interro-negativa
Forma simple
can't I erect? can't you erect? can't she erect? can't we erect? can't you erect? can't they erect?
Forma con V-ing
can't I be erecting? can't you be erecting? can't she be erecting? can't we be erecting? can't you be erecting? can't they be erecting?
Perfecto
can't I have erected? can't you have erected? can't she have erected? can't we have erected? can't you have erected? can't they have erected?
Perfecto con V-ing
can't I have been erecting? can't you have been erecting? can't she have been erecting? can't we have been erecting? can't you have been erecting? can't they have been erecting?