English verb conjugation
CAN SUCCUMB

Regular verb: succumb - succumbed - succumbed

Affirmation

Simple form	V-ing form
I can succumb you can succumb he can succumb we can succumb you can succumb they can succumb	I can be succumbing you can be succumbing he can be succumbing we can be succumbing you can be succumbing they can be succumbing
Perfect	V-ing perfect
I can have succumbed you can have succumbed he can have succumbed we can have succumbed you can have succumbed they can have succumbed	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

Negation

Simple form	V-ing form
I can't succumb you can't succumb he can't succumb we can't succumb you can't succumb they can't succumb	I can't be succumbing you can't be succumbing he can't be succumbing we can't be succumbing you can't be succumbing they can't be succumbing
Perfect	V-ing perfect
I can't have succumbed you can't have succumbed he can't have succumbed we can't have succumbed you can't have succumbed they can't have succumbed	I can't have been succumbing you can't have been succumbing he can't have been succumbing we can't have been succumbing you can't have been succumbing they can't have been succumbing

Interrogative form

Simple form	V-ing form
can I succumb? can you succumb? can he succumb? can we succumb? can you succumb? can they succumb?	can I be succumbing? can you be succumbing? can he be succumbing? can we be succumbing? can you be succumbing? can they be succumbing?
Perfect	V-ing perfect
can I have succumbed? can you have succumbed? can he have succumbed? can we have succumbed? can you have succumbed? can they have succumbed?	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?

Interro-negative form

Simple form	V-ing form
can't I succumb? can't you succumb? can't he succumb? can't we succumb? can't you succumb? can't they succumb?	can't I be succumbing? can't you be succumbing? can't he be succumbing? can't we be succumbing? can't you be succumbing? can't they be succumbing?
Perfect	V-ing perfect
can't I have succumbed? can't you have succumbed? can't he have succumbed? can't we have succumbed? can't you have succumbed? can't they have succumbed?	can't I have been succumbing? can't you have been succumbing? can't he have been succumbing? can't we have been succumbing? can't you have been succumbing? can't they have been succumbing?