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