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