English verb conjugation MUST UNDERMINE

Regular verb: undermine - undermined - undermined

Affirmation

Simple form

I must undermine
you must undermine
she must undermine
we must undermine
you must undermine
they must undermine

V-ing form

I must be undermining
you must be undermining
she must be undermining
we must be undermining
you must be undermining
they must be undermining

Perfect

I must have undermined
you must have undermined
she must have undermined
we must have undermined
you must have undermined
they must have undermined

V-ing perfect

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

Negation

Simple form

I mustn't undermine
you mustn't undermine
she mustn't undermine
we mustn't undermine
you mustn't undermine
they mustn't undermine

V-ing form

I mustn't be undermining
you mustn't be undermining
she mustn't be undermining
we mustn't be undermining
you mustn't be undermining
they mustn't be undermining

Perfect

I mustn't have undermined
you mustn't have undermined
she mustn't have undermined
we mustn't have undermined
you mustn't have undermined
they mustn't have undermined

V-ing perfect

I mustn't have been undermining
you mustn't have been undermining
she mustn't have been undermining
we mustn't have been undermining
you mustn't have been undermining
they mustn't have been undermining

Interrogative form

Simple form

must I undermine?
must you undermine?
must she undermine?
must we undermine?
must you undermine?
must they undermine?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

mustn't I undermine?
mustn't you undermine?
mustn't she undermine?
mustn't we undermine?
mustn't you undermine?
mustn't they undermine?

V-ing form

mustn't I be undermining?
mustn't you be undermining?
mustn't she be undermining?
mustn't we be undermining?
mustn't you be undermining?
mustn't they be undermining?

Perfect

mustn't I have undermined?
mustn't you have undermined?
mustn't she have undermined?
mustn't we have undermined?
mustn't you have undermined?
mustn't they have undermined?

V-ing perfect

mustn't I have been undermining?
mustn't you have been undermining?
mustn't she have been undermining?
mustn't we have been undermining?
mustn't you have been undermining?
mustn't they have been undermining?

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