English verb conjugation MUST FOUNDER

Regular verb: founder - foundered - foundered

Affirmation

Simple form

I must founder
you must founder
he must founder
we must founder
you must founder
they must founder

V-ing form

I must be foundering
you must be foundering
he must be foundering
we must be foundering
you must be foundering
they must be foundering

Perfect

I must have foundered
you must have foundered
he 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
he 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
he 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
he 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
he 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
he 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 he founder?
must we founder?
must you founder?
must they founder?

V-ing form

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

Perfect

must I have foundered?
must you have foundered?
must he 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 he 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 he 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 he 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 he 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 he 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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