I can concoct you can concoct she can concoct we can concoct you can concoct they can concoct
Forma con V-ing
I can be concocting you can be concocting she can be concocting we can be concocting you can be concocting they can be concocting
Perfecto
I can have concocted you can have concocted she can have concocted we can have concocted you can have concocted they can have concocted
Perfecto con V-ing
I can have been concocting you can have been concocting she can have been concocting we can have been concocting you can have been concocting they can have been concocting
Negación
Forma simple
I cannot concoct you cannot concoct she cannot concoct we cannot concoct you cannot concoct they cannot concoct
Forma con V-ing
I cannot be concocting you cannot be concocting she cannot be concocting we cannot be concocting you cannot be concocting they cannot be concocting
Perfecto
I cannot have concocted you cannot have concocted she cannot have concocted we cannot have concocted you cannot have concocted they cannot have concocted
Perfecto con V-ing
I cannot have been concocting you cannot have been concocting she cannot have been concocting we cannot have been concocting you cannot have been concocting they cannot have been concocting
Forma interrogativa
Forma simple
can I concoct? can you concoct? can she concoct? can we concoct? can you concoct? can they concoct?
Forma con V-ing
can I be concocting? can you be concocting? can she be concocting? can we be concocting? can you be concocting? can they be concocting?
Perfecto
can I have concocted? can you have concocted? can she have concocted? can we have concocted? can you have concocted? can they have concocted?
Perfecto con V-ing
can I have been concocting? can you have been concocting? can she have been concocting? can we have been concocting? can you have been concocting? can they have been concocting?
Forma interro-negativa
Forma simple
can I not concoct? can you not concoct? can she not concoct? can we not concoct? can you not concoct? can they not concoct?
Forma con V-ing
can I not be concocting? can you not be concocting? can she not be concocting? can we not be concocting? can you not be concocting? can they not be concocting?
Perfecto
can I not have concocted? can you not have concocted? can she not have concocted? can we not have concocted? can you not have concocted? can they not have concocted?
Perfecto con V-ing
can I not have been concocting? can you not have been concocting? can she not have been concocting? can we not have been concocting? can you not have been concocting? can they not have been concocting?