I biff you biff he biffs we biff you biff they biff
Present continuous
I am biffing you are biffing he is biffing we are biffing you are biffing they are biffing
Preterite
I biffed you biffed he biffed we biffed you biffed they biffed
Preterite continuous
I was biffing you were biffing he was biffing we were biffing you were biffing they were biffing
Present perfect
I have biffed you have biffed he has biffed we have biffed you have biffed they have biffed
Present perfect continuous
I have been biffing you have been biffing he has been biffing we have been biffing you have been biffing they have been biffing
Pluperfect
I had biffed you had biffed he had biffed we had biffed you had biffed they had biffed
Pluperfect continuous
I had been biffing you had been biffing he had been biffing we had been biffing you had been biffing they had been biffing
Future
I will biff you will biff he will biff we will biff you will biff they will biff
Future continuous
I will be biffing you will be biffing he will be biffing we will be biffing you will be biffing they will be biffing
Future perfect
I will have biffed you will have biffed he will have biffed we will have biffed you will have biffed they will have biffed
Future perfect continuous
I will have been biffing you will have been biffing he will have been biffing we will have been biffing you will have been biffing they will have been biffing
Conditional
Present
I would biff you would biff he would biff we would biff you would biff they would biff
Present continuous
I would be biffing you would be biffing he would be biffing we would be biffing you would be biffing they would be biffing
Past
I would have biffed you would have biffed he would have biffed we would have biffed you would have biffed they would have biffed
Past continuous
I would have been biffing you would have been biffing he would have been biffing we would have been biffing you would have been biffing they would have been biffing