English verb conjugation
OUGHT TO DISCOLOUR

Regular verb: discolour - discoloured - discoloured

Affirmation

Simple form	V-ing form
I ought to discolour you ought to discolour he ought to discolour we ought to discolour you ought to discolour they ought to discolour	I ought to be discolouring you ought to be discolouring he ought to be discolouring we ought to be discolouring you ought to be discolouring they ought to be discolouring
Perfect	V-ing perfect
I ought to have discoloured you ought to have discoloured he ought to have discoloured we ought to have discoloured you ought to have discoloured they ought to have discoloured	I ought to have been discolouring you ought to have been discolouring he ought to have been discolouring we ought to have been discolouring you ought to have been discolouring they ought to have been discolouring

Negation

Simple form	V-ing form
I oughtn't to discolour you oughtn't to discolour he oughtn't to discolour we oughtn't to discolour you oughtn't to discolour they oughtn't to discolour	I oughtn't to be discolouring you oughtn't to be discolouring he oughtn't to be discolouring we oughtn't to be discolouring you oughtn't to be discolouring they oughtn't to be discolouring
Perfect	V-ing perfect
I oughtn't to have discoloured you oughtn't to have discoloured he oughtn't to have discoloured we oughtn't to have discoloured you oughtn't to have discoloured they oughtn't to have discoloured	I oughtn't to have been discolouring you oughtn't to have been discolouring he oughtn't to have been discolouring we oughtn't to have been discolouring you oughtn't to have been discolouring they oughtn't to have been discolouring

Interrogative form

Simple form	V-ing form
ought to I discolour? ought to you discolour? ought to he discolour? ought to we discolour? ought to you discolour? ought to they discolour?	ought to I be discolouring? ought to you be discolouring? ought to he be discolouring? ought to we be discolouring? ought to you be discolouring? ought to they be discolouring?
Perfect	V-ing perfect
ought to I have discoloured? ought to you have discoloured? ought to he have discoloured? ought to we have discoloured? ought to you have discoloured? ought to they have discoloured?	ought to I have been discolouring? ought to you have been discolouring? ought to he have been discolouring? ought to we have been discolouring? ought to you have been discolouring? ought to they have been discolouring?

Interro-negative form

Simple form	V-ing form
oughtn't I to discolour? oughtn't you to discolour? oughtn't he to discolour? oughtn't we to discolour? oughtn't you to discolour? oughtn't they to discolour?	oughtn't I to be discolouring? oughtn't you to be discolouring? oughtn't he to be discolouring? oughtn't we to be discolouring? oughtn't you to be discolouring? oughtn't they to be discolouring?
Perfect	V-ing perfect
oughtn't I to have discoloured? oughtn't you to have discoloured? oughtn't he to have discoloured? oughtn't we to have discoloured? oughtn't you to have discoloured? oughtn't they to have discoloured?	oughtn't I to have been discolouring? oughtn't you to have been discolouring? oughtn't he to have been discolouring? oughtn't we to have been discolouring? oughtn't you to have been discolouring? oughtn't they to have been discolouring?