I do not discolour you do not discolour he does not discolour we do not discolour you do not discolour they do not discolour
Present continuous
I am not discolouring you are not discolouring he is not discolouring we are not discolouring you are not discolouring they are not discolouring
Preterite
I did not discolour you did not discolour he did not discolour we did not discolour you did not discolour they did not discolour
Preterite continuous
I was not discolouring you were not discolouring he was not discolouring we were not discolouring you were not discolouring they were not discolouring
Present perfect
I have not discoloured you have not discoloured he has not discoloured we have not discoloured you have not discoloured they have not discoloured
Present perfect continuous
I have not been discolouring you have not been discolouring he has not been discolouring we have not been discolouring you have not been discolouring they have not been discolouring
Pluperfect
I had not discoloured you had not discoloured he had not discoloured we had not discoloured you had not discoloured they had not discoloured
Pluperfect continuous
I had not been discolouring you had not been discolouring he had not been discolouring we had not been discolouring you had not been discolouring they had not been discolouring
Future
I will not discolour you will not discolour he will not discolour we will not discolour you will not discolour they will not discolour
Future continuous
I will not be discolouring you will not be discolouring he will not be discolouring we will not be discolouring you will not be discolouring they will not be discolouring
Future perfect
I will not have discoloured you will not have discoloured he will not have discoloured we will not have discoloured you will not have discoloured they will not have discoloured
Future perfect continuous
I will not have been discolouring you will not have been discolouring he will not have been discolouring we will not have been discolouring you will not have been discolouring they will not have been discolouring
Conditional
Present
I would not discolour you would not discolour he would not discolour we would not discolour you would not discolour they would not discolour
Present continuous
I would not be discolouring you would not be discolouring he would not be discolouring we would not be discolouring you would not be discolouring they would not be discolouring
Past
I would not have discoloured you would not have discoloured he would not have discoloured we would not have discoloured you would not have discoloured they would not have discoloured
Past continuous
I would not have been discolouring you would not have been discolouring he would not have been discolouring we would not have been discolouring you would not have been discolouring they would not have been discolouring
Imperative
Imperative
do not discolour Let's not discolour do not discolour