Conjugations of the English verb stack can be found below. To conjugate any other English or French verb you can use the search box on the top of the page. Click the translation icon Translation button to translate each conjugation. To help you learn this verb you can test yourself on its conjugation. Do this by clicking on the yellow Test button on the top right.
 

Indicative

Present
T
I stack up
you stack up
he stacks up
we stack up
they stack up
Perfect
T
I have stacked up
you have stacked up
he has stacked up
we have stacked up
they have stacked up
Past
I stacked up
you stacked up
he stacked up
we stacked up
they stacked up
Pluperfect
I had stacked up
you had stacked up
he had stacked up
we had stacked up
they had stacked up
Future
I will stack up
you will stack up
he will stack up
we will stack up
they will stack up
Future perfect
I will have stacked up
you will have stacked up
he will have stacked up
we will have stacked up
they will have stacked up

Imperative

Present
stack up!
let's stack up!
 
 
 

Conditional

Present
I would stack up
you would stack up
he would stack up
we would stack up
they would stack up
Perfect
I would have stacked up
you would have stacked up
he would have stacked up
we would have stacked up
they would have stacked up

Conjunctive

Present
I stack up
you stack up
he stack up
we stack up
they stack up
Perfect
I have stacked up
you have stacked up
he have stacked up
we have stacked up
they have stacked up
Past
 
I stacked up
you stacked up
he stacked up
we stacked up
they stacked up
Pluperfect
 
I had stacked up
you had stacked up
he had stacked up
we had stacked up
they had stacked up

Participle

Gerund
stacking up
Past
stacked up
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