English verb conjugation MUST DISCOLOUR

Regular verb: discolour - discoloured - discoloured

Affirmation

Simple form

I must discolour
you must discolour
he must discolour
we must discolour
you must discolour
they must discolour

V-ing form

I must be discolouring
you must be discolouring
he must be discolouring
we must be discolouring
you must be discolouring
they must be discolouring

Perfect

I must have discoloured
you must have discoloured
he must have discoloured
we must have discoloured
you must have discoloured
they must have discoloured

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I discolour?
must you discolour?
must he discolour?
must we discolour?
must you discolour?
must they discolour?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Page top