to stiffen
Verbo regular: stiffen - stiffened- stiffened

Indicativo 	
Presente 	Presente contínuo 	Pretérito 	Preterito contínuo 	
I stiffen
you stiffen
he stiffens
we stiffen
you stiffen
they stiffen 	I'mstiffening
you'restiffening
he'sstiffening
we'restiffening
you'restiffening
they'restiffening	I stiffened
you stiffened
he stiffened
we stiffened
you stiffened
they stiffened	Iwasstiffening
youwerestiffening
hewasstiffening
wewerestiffening
youwerestiffening
theywerestiffening	
Presente perfeito 	Presente perfeito contínuo 	Mais perfeito 	Contínuo mais perfeito 	
I've stiffened
you've stiffened
he's stiffened
we've stiffened
you've stiffened
they've stiffened	I'vebeen stiffening
you'vebeen stiffening
he'sbeen stiffening
we'vebeen stiffening
you'vebeen stiffening
they'vebeen stiffening	I'd stiffened
you'd stiffened
he'd stiffened
we'd stiffened
you'd stiffened
they'd stiffened	I'd been stiffening
you'd been stiffening
he'd been stiffening
we'd been stiffening
you'd been stiffening
they'd been stiffening	
Futuro 	Futuro contínuo 	futuro perfeito 	futuro perfeito contínuo 	
I'll stiffen
you'll stiffen
he'll stiffen
we'll stiffen
you'll stiffen
they'll stiffen 	I'll be stiffening
you'll be stiffening
he'll be stiffening
we'll be stiffening
you'll be stiffening
they'll be stiffening	I'll have stiffened
you'll have stiffened
he'll have stiffened
we'll have stiffened
you'll have stiffened
they'll have stiffened	I'll have been stiffening
you'll have been stiffening
he'll have been stiffening
we'll have been stiffening
you'll have been stiffening
they'll have been stiffening	

Condicional 	
Presente 	Presente contínuo 	Passado 	Passado contínuo 	
I'd stiffen
you'd stiffen
he'd stiffen
we'd stiffen
you'd stiffen
they'd stiffen 	I'd be stiffening
you'd be stiffening
he'd be stiffening
we'd be stiffening
you'd be stiffening
they'd be stiffening	I'd have stiffened
you'd have stiffened
he'd have stiffened
we'd have stiffened
you'd have stiffened
they'd have stiffened	I'd have been stiffening
you'd have been stiffening
he'd have been stiffening
we'd have been stiffening
you'd have been stiffening
they'd have been stiffening	

Infinitivo 	
Imperativo 	
Infinitivo 	 	Imperativo 	 	
to stiffen 	 	stiffen
Let's stiffen
stiffen 	 	

Particípio 	
Presente 	Passado 	 	 	
stiffening	stiffened