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stack - Conjugation
| Person | Present | Future | Past |
|---|---|---|---|
| I | stack | will stack | stacked |
| You | stack | will stack | stacked |
| He/She/It | stacks | will stack | stacked |
| We | stack | will stack | stacked |
| They | stack | will stack | stacked |
| Person | Present | Future | Past |
|---|---|---|---|
| I | had stacked | will have stacked | had stacked |
| You | had stacked | will have stacked | had stacked |
| He/She/It | has stacked | will have stacked | had stacked |
| We | had stacked | will have stacked | had stacked |
| They | had stacked | will have stacked | had stacked |
| Person | Present | Future | Past |
|---|---|---|---|
| I | am stacking | will be stacking | was stacking |
| You | are stacking | will be stacking | were stacking |
| He/She/It | is stacking | will be stacking | was stacking |
| We | are stacking | will be stacking | were stacking |
| They | are stacking | will be stacking | were stacking |
| Person | Present | Future | Past |
|---|---|---|---|
| I | have been stacking | will have been stacking | had been stacking |
| You | have been stacking | will have been stacking | had been stacking |
| He/She/It | has been stacking | will have been stacking | had been stacking |
| We | have been stacking | will have been stacking | had been stacking |
| They | have been stacking | will have been stacking | had been stacking |
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