
Regular verb: spy - spied - spied
| Present | Present continuous | Preterite | Preterite continuous | 
| I spy you spy he spies we spy you spy they spy | I'm spying you're spying he's spying we're spying you're spying they're spying | I spied you spied he spied we spied you spied they spied | I was spying you were spying he was spying we were spying you were spying they were spying | 
| Present perfect | Present perfect continuous | Pluperfect | Pluperfect continuous | 
| I've spied you've spied he's spied we've spied you've spied they've spied | I've been spying you've been spying he's been spying we've been spying you've been spying they've been spying | I'd spied you'd spied he'd spied we'd spied you'd spied they'd spied | I'd been spying you'd been spying he'd been spying we'd been spying you'd been spying they'd been spying | 
| Future | Future continuous | Future perfect | Future perfect continuous | 
| I'll spy you'll spy he'll spy we'll spy you'll spy they'll spy | I'll be spying you'll be spying he'll be spying we'll be spying you'll be spying they'll be spying | I'll have spied you'll have spied he'll have spied we'll have spied you'll have spied they'll have spied | I'll have been spying you'll have been spying he'll have been spying we'll have been spying you'll have been spying they'll have been spying | 
| Present | Present continuous | Past | Past continuous | 
| I'd spy you'd spy he'd spy we'd spy you'd spy they'd spy | I'd be spying you'd be spying he'd be spying we'd be spying you'd be spying they'd be spying | I'd have spied you'd have spied he'd have spied we'd have spied you'd have spied they'd have spied | I'd have been spying you'd have been spying he'd have been spying we'd have been spying you'd have been spying they'd have been spying | 
| Infinitive | Imperative | 
| Infinitive | Imperative | ||
| to spy | spy Let's spy spy | 
| Present | Past | ||
| spying | spied |