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