I am bumming you are bumming he is bumming we are bumming you are bumming they are bumming
Preterite
I bummed you bummed he bummed we bummed you bummed they bummed
Preterite continuous
I was bumming you were bumming he was bumming we were bumming you were bumming they were bumming
Present perfect
I have bummed you have bummed he has bummed we have bummed you have bummed they have bummed
Present perfect continuous
I have been bumming you have been bumming he has been bumming we have been bumming you have been bumming they have been bumming
Pluperfect
I had bummed you had bummed he had bummed we had bummed you had bummed they had bummed
Pluperfect continuous
I had been bumming you had been bumming he had been bumming we had been bumming you had been bumming they had been bumming
Future
I will bum you will bum he will bum we will bum you will bum they will bum
Future continuous
I will be bumming you will be bumming he will be bumming we will be bumming you will be bumming they will be bumming
Future perfect
I will have bummed you will have bummed he will have bummed we will have bummed you will have bummed they will have bummed
Future perfect continuous
I will have been bumming you will have been bumming he will have been bumming we will have been bumming you will have been bumming they will have been bumming
Conditional
Present
I would bum you would bum he would bum we would bum you would bum they would bum
Present continuous
I would be bumming you would be bumming he would be bumming we would be bumming you would be bumming they would be bumming
Past
I would have bummed you would have bummed he would have bummed we would have bummed you would have bummed they would have bummed
Past continuous
I would have been bumming you would have been bumming he would have been bumming we would have been bumming you would have been bumming they would have been bumming