English verb conjugation MUST DUMB

Regular verb: dumb - dumbed - dumbed

Affirmation

Simple form

I must dumb
you must dumb
he must dumb
we must dumb
you must dumb
they must dumb

V-ing form

I must be dumbing
you must be dumbing
he must be dumbing
we must be dumbing
you must be dumbing
they must be dumbing

Perfect

I must have dumbed
you must have dumbed
he must have dumbed
we must have dumbed
you must have dumbed
they must have dumbed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I dumb?
must you dumb?
must he dumb?
must we dumb?
must you dumb?
must they dumb?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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