English verb conjugation
TO STIFFER

Regular verb: stiffer - stiffered - stiffered

Warning, this verb may not exist. Conjugation is given as example.

Indicative

Present	Present continuous	Preterite	Preterite continuous
I stiffer you stiffer she stiffers we stiffer you stiffer they stiffer	I'm stiffering you're stiffering she's stiffering we're stiffering you're stiffering they're stiffering	I stiffered you stiffered she stiffered we stiffered you stiffered they stiffered	I was stiffering you were stiffering she was stiffering we were stiffering you were stiffering they were stiffering
Present perfect	Present perfect continuous	Pluperfect	Pluperfect continuous
I've stiffered you've stiffered she's stiffered we've stiffered you've stiffered they've stiffered	I've been stiffering you've been stiffering she's been stiffering we've been stiffering you've been stiffering they've been stiffering	I'd stiffered you'd stiffered she'd stiffered we'd stiffered you'd stiffered they'd stiffered	I'd been stiffering you'd been stiffering she'd been stiffering we'd been stiffering you'd been stiffering they'd been stiffering
Future	Future continuous	Future perfect	Future perfect continuous
I'll stiffer you'll stiffer she'll stiffer we'll stiffer you'll stiffer they'll stiffer	I'll be stiffering you'll be stiffering she'll be stiffering we'll be stiffering you'll be stiffering they'll be stiffering	I'll have stiffered you'll have stiffered she'll have stiffered we'll have stiffered you'll have stiffered they'll have stiffered	I'll have been stiffering you'll have been stiffering she'll have been stiffering we'll have been stiffering you'll have been stiffering they'll have been stiffering

Conditional

Present	Present continuous	Past	Past continuous
I'd stiffer you'd stiffer she'd stiffer we'd stiffer you'd stiffer they'd stiffer	I'd be stiffering you'd be stiffering she'd be stiffering we'd be stiffering you'd be stiffering they'd be stiffering	I'd have stiffered you'd have stiffered she'd have stiffered we'd have stiffered you'd have stiffered they'd have stiffered	I'd have been stiffering you'd have been stiffering she'd have been stiffering we'd have been stiffering you'd have been stiffering they'd have been stiffering

Infinitive

Imperative

Infinitive		Imperative
to stiffer		stiffer Let's stiffer stiffer

Participle

Present	Past
stiffering	stiffered