stiffen - Conjugation of the English verb stiffen
Please think of the environment when printing.
to stiffen (with cardboard) cartonner
 
Indicative
Present Perfect
I stiffen (with cardboard)
you stiffen (with cardboard)
he stiffens (with cardboard)
we stiffen (with cardboard)
they stiffen (with cardboard)
I have stiffened (with cardboard)
you have stiffened (with cardboard)
he has stiffened (with cardboard)
we have stiffened (with cardboard)
they have stiffened (with cardboard)
Past Pluperfect
I stiffened (with cardboard)
you stiffened (with cardboard)
he stiffened (with cardboard)
we stiffened (with cardboard)
they stiffened (with cardboard)
I had stiffened (with cardboard)
you had stiffened (with cardboard)
he had stiffened (with cardboard)
we had stiffened (with cardboard)
they had stiffened (with cardboard)
Future Future perfect
I will stiffen (with cardboard)
you will stiffen (with cardboard)
he will stiffen (with cardboard)
we will stiffen (with cardboard)
they will stiffen (with cardboard)
I will have stiffened (with cardboard)
you will have stiffened (with cardboard)
he will have stiffened (with cardboard)
we will have stiffened (with cardboard)
they will have stiffened (with cardboard)
Imperative
Present    
stiffen (with cardboard)!
let's stiffen (with cardboard)!
 
 
Conditional
Present Perfect
I would stiffen (with cardboard)
you would stiffen (with cardboard)
he would stiffen (with cardboard)
we would stiffen (with cardboard)
they would stiffen (with cardboard)
I would have stiffened (with cardboard)
you would have stiffened (with cardboard)
he would have stiffened (with cardboard)
we would have stiffened (with cardboard)
they would have stiffened (with cardboard)
Conjunctive
Present Perfect
I stiffen (with cardboard)
you stiffen (with cardboard)
he stiffen (with cardboard)
we stiffen (with cardboard)
they stiffen (with cardboard)
I have stiffened (with cardboard)
you have stiffened (with cardboard)
he have stiffened (with cardboard)
we have stiffened (with cardboard)
they have stiffened (with cardboard)
Past   Pluperfect  
I stiffened (with cardboard)
you stiffened (with cardboard)
he stiffened (with cardboard)
we stiffened (with cardboard)
they stiffened (with cardboard)
I had stiffened (with cardboard)
you had stiffened (with cardboard)
he had stiffened (with cardboard)
we had stiffened (with cardboard)
they had stiffened (with cardboard)
Participle
Gerund Past
stiffening (with cardboard)
stiffened (with cardboard)