English verb conjugation COULD SUCCUMB

Regular verb: succumb - succumbed - succumbed

Affirmation

Simple form

I could succumb
you could succumb
he could succumb
we could succumb
you could succumb
they could succumb

V-ing form

I could be succumbing
you could be succumbing
he could be succumbing
we could be succumbing
you could be succumbing
they could be succumbing

Perfect

I could have succumbed
you could have succumbed
he could have succumbed
we could have succumbed
you could have succumbed
they could have succumbed

V-ing perfect

I could have been succumbing
you could have been succumbing
he could have been succumbing
we could have been succumbing
you could have been succumbing
they could have been succumbing

Negation

Simple form

I couldn't succumb
you couldn't succumb
he couldn't succumb
we couldn't succumb
you couldn't succumb
they couldn't succumb

V-ing form

I couldn't be succumbing
you couldn't be succumbing
he couldn't be succumbing
we couldn't be succumbing
you couldn't be succumbing
they couldn't be succumbing

Perfect

I couldn't have succumbed
you couldn't have succumbed
he couldn't have succumbed
we couldn't have succumbed
you couldn't have succumbed
they couldn't have succumbed

V-ing perfect

I couldn't have been succumbing
you couldn't have been succumbing
he couldn't have been succumbing
we couldn't have been succumbing
you couldn't have been succumbing
they couldn't have been succumbing

Interrogative form

Simple form

could I succumb?
could you succumb?
could he succumb?
could we succumb?
could you succumb?
could they succumb?

V-ing form

could I be succumbing?
could you be succumbing?
could he be succumbing?
could we be succumbing?
could you be succumbing?
could they be succumbing?

Perfect

could I have succumbed?
could you have succumbed?
could he have succumbed?
could we have succumbed?
could you have succumbed?
could they have succumbed?

V-ing perfect

could I have been succumbing?
could you have been succumbing?
could he have been succumbing?
could we have been succumbing?
could you have been succumbing?
could they have been succumbing?

Interro-negative form

Simple form

couldn't I succumb?
couldn't you succumb?
couldn't he succumb?
couldn't we succumb?
couldn't you succumb?
couldn't they succumb?

V-ing form

couldn't I be succumbing?
couldn't you be succumbing?
couldn't he be succumbing?
couldn't we be succumbing?
couldn't you be succumbing?
couldn't they be succumbing?

Perfect

couldn't I have succumbed?
couldn't you have succumbed?
couldn't he have succumbed?
couldn't we have succumbed?
couldn't you have succumbed?
couldn't they have succumbed?

V-ing perfect

couldn't I have been succumbing?
couldn't you have been succumbing?
couldn't he have been succumbing?
couldn't we have been succumbing?
couldn't you have been succumbing?
couldn't they have been succumbing?

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