English verb conjugation MUST SNOWPLOUGH

Regular verb: snowplough - snowploughed - snowploughed

Affirmation

Simple form

I must snowplough
you must snowplough
he must snowplough
we must snowplough
you must snowplough
they must snowplough

V-ing form

I must be snowploughing
you must be snowploughing
he must be snowploughing
we must be snowploughing
you must be snowploughing
they must be snowploughing

Perfect

I must have snowploughed
you must have snowploughed
he must have snowploughed
we must have snowploughed
you must have snowploughed
they must have snowploughed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I snowplough?
must you snowplough?
must he snowplough?
must we snowplough?
must you snowplough?
must they snowplough?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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