I stack you stack he stacks we stack you stack they stack
Presente contínuo
I am stacking you are stacking he is stacking we are stacking you are stacking they are stacking
Pretérito
I stacked you stacked he stacked we stacked you stacked they stacked
Preterito contínuo
I was stacking you were stacking he was stacking we were stacking you were stacking they were stacking
Presente perfeito
I have stacked you have stacked he has stacked we have stacked you have stacked they have stacked
Presente perfeito contínuo
I have been stacking you have been stacking he has been stacking we have been stacking you have been stacking they have been stacking
Mais perfeito
I had stacked you had stacked he had stacked we had stacked you had stacked they had stacked
Contínuo mais perfeito
I had been stacking you had been stacking he had been stacking we had been stacking you had been stacking they had been stacking
Futuro
I will stack you will stack he will stack we will stack you will stack they will stack
Futuro contínuo
I will be stacking you will be stacking he will be stacking we will be stacking you will be stacking they will be stacking
futuro perfeito
I will have stacked you will have stacked he will have stacked we will have stacked you will have stacked they will have stacked
futuro perfeito contínuo
I will have been stacking you will have been stacking he will have been stacking we will have been stacking you will have been stacking they will have been stacking
Condicional
Presente
I would stack you would stack he would stack we would stack you would stack they would stack
Presente contínuo
I would be stacking you would be stacking he would be stacking we would be stacking you would be stacking they would be stacking
Passado
I would have stacked you would have stacked he would have stacked we would have stacked you would have stacked they would have stacked
Passado contínuo
I would have been stacking you would have been stacking he would have been stacking we would have been stacking you would have been stacking they would have been stacking