English verb conjugation MUST SUCCUMB

Regular verb: succumb - succumbed - succumbed

Affirmation

Simple form

I must succumb
you must succumb
she must succumb
we must succumb
you must succumb
they must succumb

V-ing form

I must be succumbing
you must be succumbing
she must be succumbing
we must be succumbing
you must be succumbing
they must be succumbing

Perfect

I must have succumbed
you must have succumbed
she must have succumbed
we must have succumbed
you must have succumbed
they must have succumbed

V-ing perfect

I must have been succumbing
you must have been succumbing
she must have been succumbing
we must have been succumbing
you must have been succumbing
they must have been succumbing

Negation

Simple form

I must not succumb
you must not succumb
she must not succumb
we must not succumb
you must not succumb
they must not succumb

V-ing form

I must not be succumbing
you must not be succumbing
she must not be succumbing
we must not be succumbing
you must not be succumbing
they must not be succumbing

Perfect

I must not have succumbed
you must not have succumbed
she must not have succumbed
we must not have succumbed
you must not have succumbed
they must not have succumbed

V-ing perfect

I must not have been succumbing
you must not have been succumbing
she must not have been succumbing
we must not have been succumbing
you must not have been succumbing
they must not have been succumbing

Interrogative form

Simple form

must I succumb?
must you succumb?
must she succumb?
must we succumb?
must you succumb?
must they succumb?

V-ing form

must I be succumbing?
must you be succumbing?
must she be succumbing?
must we be succumbing?
must you be succumbing?
must they be succumbing?

Perfect

must I have succumbed?
must you have succumbed?
must she have succumbed?
must we have succumbed?
must you have succumbed?
must they have succumbed?

V-ing perfect

must I have been succumbing?
must you have been succumbing?
must she have been succumbing?
must we have been succumbing?
must you have been succumbing?
must they have been succumbing?

Interro-negative form

Simple form

must I not succumb?
must you not succumb?
must she not succumb?
must we not succumb?
must you not succumb?
must they not succumb?

V-ing form

must I not be succumbing?
must you not be succumbing?
must she not be succumbing?
must we not be succumbing?
must you not be succumbing?
must they not be succumbing?

Perfect

must I not have succumbed?
must you not have succumbed?
must she not have succumbed?
must we not have succumbed?
must you not have succumbed?
must they not have succumbed?

V-ing perfect

must I not have been succumbing?
must you not have been succumbing?
must she not have been succumbing?
must we not have been succumbing?
must you not have been succumbing?
must they not have been succumbing?

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