I do not scratch you do not scratch he does not scratch we do not scratch you do not scratch they do not scratch
Present continuous
I am not scratching you are not scratching he is not scratching we are not scratching you are not scratching they are not scratching
Preterite
I did not scratch you did not scratch he did not scratch we did not scratch you did not scratch they did not scratch
Preterite continuous
I was not scratching you were not scratching he was not scratching we were not scratching you were not scratching they were not scratching
Present perfect
I have not scratched you have not scratched he has not scratched we have not scratched you have not scratched they have not scratched
Present perfect continuous
I have not been scratching you have not been scratching he has not been scratching we have not been scratching you have not been scratching they have not been scratching
Pluperfect
I had not scratched you had not scratched he had not scratched we had not scratched you had not scratched they had not scratched
Pluperfect continuous
I had not been scratching you had not been scratching he had not been scratching we had not been scratching you had not been scratching they had not been scratching
Future
I will not scratch you will not scratch he will not scratch we will not scratch you will not scratch they will not scratch
Future continuous
I will not be scratching you will not be scratching he will not be scratching we will not be scratching you will not be scratching they will not be scratching
Future perfect
I will not have scratched you will not have scratched he will not have scratched we will not have scratched you will not have scratched they will not have scratched
Future perfect continuous
I will not have been scratching you will not have been scratching he will not have been scratching we will not have been scratching you will not have been scratching they will not have been scratching
Conditional
Present
I would not scratch you would not scratch he would not scratch we would not scratch you would not scratch they would not scratch
Present continuous
I would not be scratching you would not be scratching he would not be scratching we would not be scratching you would not be scratching they would not be scratching
Past
I would not have scratched you would not have scratched he would not have scratched we would not have scratched you would not have scratched they would not have scratched
Past continuous
I would not have been scratching you would not have been scratching he would not have been scratching we would not have been scratching you would not have been scratching they would not have been scratching