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