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