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 ought not to discolour you ought not to discolour he ought not to discolour we ought not to discolour you ought not to discolour they ought not to discolour	I ought not to discolouring you ought not to discolouring he ought not to discolouring we ought not to discolouring you ought not to discolouring they ought not to discolouring
Perfect	V-ing perfect
I ought not to have discoloured you ought not to have discoloured he ought not to have discoloured we ought not to have discoloured you ought not to have discoloured they ought not to have discoloured	I ought not to have been discolouring you ought not to have been discolouring he ought not to have been discolouring we ought not to have been discolouring you ought not to have been discolouring they ought not 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
ought I not to discolour? ought you not to discolour? ought he not to discolour? ought we not to discolour? ought you not to discolour? ought they not to discolour?	ought I not to be discolouring? ought you not to be discolouring? ought he not to be discolouring? ought we not to be discolouring? ought you not to be discolouring? ought they not to be discolouring?
Perfect	V-ing perfect
ought I not to have discoloured? ought you not to have discoloured? ought he not to have discoloured? ought we not to have discoloured? ought you not to have discoloured? ought they not to have discoloured?	ought I not to have been discolouring? ought you not to have been discolouring? ought he not to have been discolouring? ought we not to have been discolouring? ought you not to have been discolouring? ought they not to have been discolouring?