English verb conjugation MUST YAWP

Regular verb: yawp - yawped - yawped

Affirmation

Simple form

I must yawp
you must yawp
he must yawp
we must yawp
you must yawp
they must yawp

V-ing form

I must be yawping
you must be yawping
he must be yawping
we must be yawping
you must be yawping
they must be yawping

Perfect

I must have yawped
you must have yawped
he must have yawped
we must have yawped
you must have yawped
they must have yawped

V-ing perfect

I must have been yawping
you must have been yawping
he must have been yawping
we must have been yawping
you must have been yawping
they must have been yawping

Negation

Simple form

I mustn't yawp
you mustn't yawp
he mustn't yawp
we mustn't yawp
you mustn't yawp
they mustn't yawp

V-ing form

I mustn't be yawping
you mustn't be yawping
he mustn't be yawping
we mustn't be yawping
you mustn't be yawping
they mustn't be yawping

Perfect

I mustn't have yawped
you mustn't have yawped
he mustn't have yawped
we mustn't have yawped
you mustn't have yawped
they mustn't have yawped

V-ing perfect

I mustn't have been yawping
you mustn't have been yawping
he mustn't have been yawping
we mustn't have been yawping
you mustn't have been yawping
they mustn't have been yawping

Interrogative form

Simple form

must I yawp?
must you yawp?
must he yawp?
must we yawp?
must you yawp?
must they yawp?

V-ing form

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

Perfect

must I have yawped?
must you have yawped?
must he have yawped?
must we have yawped?
must you have yawped?
must they have yawped?

V-ing perfect

must I have been yawping?
must you have been yawping?
must he have been yawping?
must we have been yawping?
must you have been yawping?
must they have been yawping?

Interro-negative form

Simple form

mustn't I yawp?
mustn't you yawp?
mustn't he yawp?
mustn't we yawp?
mustn't you yawp?
mustn't they yawp?

V-ing form

mustn't I be yawping?
mustn't you be yawping?
mustn't he be yawping?
mustn't we be yawping?
mustn't you be yawping?
mustn't they be yawping?

Perfect

mustn't I have yawped?
mustn't you have yawped?
mustn't he have yawped?
mustn't we have yawped?
mustn't you have yawped?
mustn't they have yawped?

V-ing perfect

mustn't I have been yawping?
mustn't you have been yawping?
mustn't he have been yawping?
mustn't we have been yawping?
mustn't you have been yawping?
mustn't they have been yawping?

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