I can succumb you can succumb he can succumb we can succumb you can succumb they can succumb
Forma con V-ing
I can be succumbing you can be succumbing he can be succumbing we can be succumbing you can be succumbing they can be succumbing
Perfecto
I can have succumbed you can have succumbed he can have succumbed we can have succumbed you can have succumbed they can have succumbed
Perfecto con V-ing
I can have been succumbing you can have been succumbing he can have been succumbing we can have been succumbing you can have been succumbing they can have been succumbing
Negación
Forma simple
I cannot succumb you cannot succumb he cannot succumb we cannot succumb you cannot succumb they cannot succumb
Forma con V-ing
I cannot be succumbing you cannot be succumbing he cannot be succumbing we cannot be succumbing you cannot be succumbing they cannot be succumbing
Perfecto
I cannot have succumbed you cannot have succumbed he cannot have succumbed we cannot have succumbed you cannot have succumbed they cannot have succumbed
Perfecto con V-ing
I cannot have been succumbing you cannot have been succumbing he cannot have been succumbing we cannot have been succumbing you cannot have been succumbing they cannot have been succumbing
Forma interrogativa
Forma simple
can I succumb? can you succumb? can he succumb? can we succumb? can you succumb? can they succumb?
Forma con V-ing
can I be succumbing? can you be succumbing? can he be succumbing? can we be succumbing? can you be succumbing? can they be succumbing?
Perfecto
can I have succumbed? can you have succumbed? can he have succumbed? can we have succumbed? can you have succumbed? can they have succumbed?
Perfecto con V-ing
can I have been succumbing? can you have been succumbing? can he have been succumbing? can we have been succumbing? can you have been succumbing? can they have been succumbing?
Forma interro-negativa
Forma simple
can I not succumb? can you not succumb? can he not succumb? can we not succumb? can you not succumb? can they not succumb?
Forma con V-ing
can I not be succumbing? can you not be succumbing? can he not be succumbing? can we not be succumbing? can you not be succumbing? can they not be succumbing?
Perfecto
can I not have succumbed? can you not have succumbed? can he not have succumbed? can we not have succumbed? can you not have succumbed? can they not have succumbed?
Perfecto con V-ing
can I not have been succumbing? can you not have been succumbing? can he not have been succumbing? can we not have been succumbing? can you not have been succumbing? can they not have been succumbing?