English verb conjugation MUST FOUNDER

Regular verb: founder - foundered - foundered

Affirmation

Simple form

I must founder
you must founder
she must founder
we must founder
you must founder
they must founder

V-ing form

I must be foundering
you must be foundering
she must be foundering
we must be foundering
you must be foundering
they must be foundering

Perfect

I must have foundered
you must have foundered
she must have foundered
we must have foundered
you must have foundered
they must have foundered

V-ing perfect

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

Negation

Simple form

I must not founder
you must not founder
she must not founder
we must not founder
you must not founder
they must not founder

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I founder?
must you founder?
must she founder?
must we founder?
must you founder?
must they founder?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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