English verb conjugation MUST UNDULATE

Regular verb: undulate - undulated - undulated

Affirmation

Simple form

I must undulate
you must undulate
she must undulate
we must undulate
you must undulate
they must undulate

V-ing form

I must be undulating
you must be undulating
she must be undulating
we must be undulating
you must be undulating
they must be undulating

Perfect

I must have undulated
you must have undulated
she must have undulated
we must have undulated
you must have undulated
they must have undulated

V-ing perfect

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

Negation

Simple form

I must not undulate
you must not undulate
she must not undulate
we must not undulate
you must not undulate
they must not undulate

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I undulate?
must you undulate?
must she undulate?
must we undulate?
must you undulate?
must they undulate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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