
Verbo irregular: undo - undid - undone
| Presente | Presente contínuo | Pretérito | Preterito contínuo | 
| I undo you undo he undoes we undo you undo they undo | I'm undoing you're undoing he's undoing we're undoing you're undoing they're undoing | I undid you undid he undid we undid you undid they undid | I was undoing you were undoing he was undoing we were undoing you were undoing they were undoing | 
| Presente perfeito | Presente perfeito contínuo | Mais perfeito | Contínuo mais perfeito | 
| I've undone you've undone he's undone we've undone you've undone they've undone | I've been undoing you've been undoing he's been undoing we've been undoing you've been undoing they've been undoing | I'd undone you'd undone he'd undone we'd undone you'd undone they'd undone | I'd been undoing you'd been undoing he'd been undoing we'd been undoing you'd been undoing they'd been undoing | 
| Futuro | Futuro contínuo | futuro perfeito | futuro perfeito contínuo | 
| I'll undo you'll undo he'll undo we'll undo you'll undo they'll undo | I'll be undoing you'll be undoing he'll be undoing we'll be undoing you'll be undoing they'll be undoing | I'll have undone you'll have undone he'll have undone we'll have undone you'll have undone they'll have undone | I'll have been undoing you'll have been undoing he'll have been undoing we'll have been undoing you'll have been undoing they'll have been undoing | 
| Presente | Presente contínuo | Passado | Passado contínuo | 
| I'd undo you'd undo he'd undo we'd undo you'd undo they'd undo | I'd be undoing you'd be undoing he'd be undoing we'd be undoing you'd be undoing they'd be undoing | I'd have undone you'd have undone he'd have undone we'd have undone you'd have undone they'd have undone | I'd have been undoing you'd have been undoing he'd have been undoing we'd have been undoing you'd have been undoing they'd have been undoing | 
| Infinitivo | Imperativo | 
| Infinitivo | Imperativo | ||
| to undo | undo Let's undo undo | 
| Presente | Passado | ||
| undoing | undone |