I hiss you hiss he hisses we hiss you hiss they hiss
Present continuous
I am hissing you are hissing he is hissing we are hissing you are hissing they are hissing
Preterite
I hissed you hissed he hissed we hissed you hissed they hissed
Preterite continuous
I was hissing you were hissing he was hissing we were hissing you were hissing they were hissing
Present perfect
I have hissed you have hissed he has hissed we have hissed you have hissed they have hissed
Present perfect continuous
I have been hissing you have been hissing he has been hissing we have been hissing you have been hissing they have been hissing
Pluperfect
I had hissed you had hissed he had hissed we had hissed you had hissed they had hissed
Pluperfect continuous
I had been hissing you had been hissing he had been hissing we had been hissing you had been hissing they had been hissing
Future
I will hiss you will hiss he will hiss we will hiss you will hiss they will hiss
Future continuous
I will be hissing you will be hissing he will be hissing we will be hissing you will be hissing they will be hissing
Future perfect
I will have hissed you will have hissed he will have hissed we will have hissed you will have hissed they will have hissed
Future perfect continuous
I will have been hissing you will have been hissing he will have been hissing we will have been hissing you will have been hissing they will have been hissing
Conditional
Present
I would hiss you would hiss he would hiss we would hiss you would hiss they would hiss
Present continuous
I would be hissing you would be hissing he would be hissing we would be hissing you would be hissing they would be hissing
Past
I would have hissed you would have hissed he would have hissed we would have hissed you would have hissed they would have hissed
Past continuous
I would have been hissing you would have been hissing he would have been hissing we would have been hissing you would have been hissing they would have been hissing