Warning, this verb may not exist. Conjugation is given as example.
Indicative
Present
I do not sum sum you do not sum sum he does not sum sum we do not sum sum you do not sum sum they do not sum sum
Present continuous
I am not sum suming you are not sum suming he is not sum suming we are not sum suming you are not sum suming they are not sum suming
Preterite
I did not sum sum you did not sum sum he did not sum sum we did not sum sum you did not sum sum they did not sum sum
Preterite continuous
I was not sum suming you were not sum suming he was not sum suming we were not sum suming you were not sum suming they were not sum suming
Present perfect
I have not sum sumed you have not sum sumed he has not sum sumed we have not sum sumed you have not sum sumed they have not sum sumed
Present perfect continuous
I have not been sum suming you have not been sum suming he has not been sum suming we have not been sum suming you have not been sum suming they have not been sum suming
Pluperfect
I had not sum sumed you had not sum sumed he had not sum sumed we had not sum sumed you had not sum sumed they had not sum sumed
Pluperfect continuous
I had not been sum suming you had not been sum suming he had not been sum suming we had not been sum suming you had not been sum suming they had not been sum suming
Future
I will not sum sum you will not sum sum he will not sum sum we will not sum sum you will not sum sum they will not sum sum
Future continuous
I will not be sum suming you will not be sum suming he will not be sum suming we will not be sum suming you will not be sum suming they will not be sum suming
Future perfect
I will not have sum sumed you will not have sum sumed he will not have sum sumed we will not have sum sumed you will not have sum sumed they will not have sum sumed
Future perfect continuous
I will not have been sum suming you will not have been sum suming he will not have been sum suming we will not have been sum suming you will not have been sum suming they will not have been sum suming
Conditional
Present
I would not sum sum you would not sum sum he would not sum sum we would not sum sum you would not sum sum they would not sum sum
Present continuous
I would not be sum suming you would not be sum suming he would not be sum suming we would not be sum suming you would not be sum suming they would not be sum suming
Past
I would not have sum sumed you would not have sum sumed he would not have sum sumed we would not have sum sumed you would not have sum sumed they would not have sum sumed
Past continuous
I would not have been sum suming you would not have been sum suming he would not have been sum suming we would not have been sum suming you would not have been sum suming they would not have been sum suming