I could enure you could enure she could enure we could enure you could enure they could enure
Forma con V-ing
I could be enuring you could be enuring she could be enuring we could be enuring you could be enuring they could be enuring
Perfecto
I could have enured you could have enured she could have enured we could have enured you could have enured they could have enured
Perfecto con V-ing
I could have been enuring you could have been enuring she could have been enuring we could have been enuring you could have been enuring they could have been enuring
Negación
Forma simple
I couldn't enure you couldn't enure she couldn't enure we couldn't enure you couldn't enure they couldn't enure
Forma con V-ing
I couldn't be enuring you couldn't be enuring she couldn't be enuring we couldn't be enuring you couldn't be enuring they couldn't be enuring
Perfecto
I couldn't have enured you couldn't have enured she couldn't have enured we couldn't have enured you couldn't have enured they couldn't have enured
Perfecto con V-ing
I couldn't have been enuring you couldn't have been enuring she couldn't have been enuring we couldn't have been enuring you couldn't have been enuring they couldn't have been enuring
Forma interrogativa
Forma simple
could I enure? could you enure? could she enure? could we enure? could you enure? could they enure?
Forma con V-ing
could I be enuring? could you be enuring? could she be enuring? could we be enuring? could you be enuring? could they be enuring?
Perfecto
could I have enured? could you have enured? could she have enured? could we have enured? could you have enured? could they have enured?
Perfecto con V-ing
could I have been enuring? could you have been enuring? could she have been enuring? could we have been enuring? could you have been enuring? could they have been enuring?
Forma interro-negativa
Forma simple
couldn't I enure? couldn't you enure? couldn't she enure? couldn't we enure? couldn't you enure? couldn't they enure?
Forma con V-ing
couldn't I be enuring? couldn't you be enuring? couldn't she be enuring? couldn't we be enuring? couldn't you be enuring? couldn't they be enuring?
Perfecto
couldn't I have enured? couldn't you have enured? couldn't she have enured? couldn't we have enured? couldn't you have enured? couldn't they have enured?
Perfecto con V-ing
couldn't I have been enuring? couldn't you have been enuring? couldn't she have been enuring? couldn't we have been enuring? couldn't you have been enuring? couldn't they have been enuring?