to stack
Verbo regular: stack - stacked- stacked

Indicativo 	
Presente 	Presente contínuo 	Pretérito 	Preterito contínuo 	
I stack
you stack
he stacks
we stack
you stack
they stack 	Iamstacking
youarestacking
heisstacking
wearestacking
youarestacking
theyarestacking	I stacked
you stacked
he stacked
we stacked
you stacked
they stacked	Iwasstacking
youwerestacking
hewasstacking
wewerestacking
youwerestacking
theywerestacking	
Presente perfeito 	Presente perfeito contínuo 	Mais perfeito 	Contínuo mais perfeito 	
I have stacked
you have stacked
he has stacked
we have stacked
you have stacked
they have stacked	I have been stacking
you have been stacking
hehasbeen stacking
we have been stacking
you have been stacking
they have been stacking	I had stacked
you had stacked
he had stacked
we had stacked
you had stacked
they had stacked	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 	Futuro contínuo 	futuro perfeito 	futuro perfeito contínuo 	
I will stack
you will stack
he will stack
we will stack
you will stack
they will stack 	I will be stacking
you will be stacking
he will be stacking
we will be stacking
you will be stacking
they will be stacking	I will have stacked
you will have stacked
he will have stacked
we will have stacked
you will have stacked
they will have stacked	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 	Presente contínuo 	Passado 	Passado contínuo 	
I would stack
you would stack
he would stack
we would stack
you would stack
they would stack 	I would be stacking
you would be stacking
he would be stacking
we would be stacking
you would be stacking
they would be stacking	I would have stacked
you would have stacked
he would have stacked
we would have stacked
you would have stacked
they would have stacked	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	

Infinitivo 	
Imperativo 	
Infinitivo 	 	Imperativo 	 	
to stack 	 	stack
Let's stack
stack 	 	

Particípio 	
Presente 	Passado 	 	 	
stacking	stacked