"stiffen" verb conjugation in English

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Conjugation of the verb stiffen[ˈstɪfn], regular     

All forms Indicative Conditional Participles Infinitives

Indicative

Present Indefinite

I stiffen
you stiffen
he/she/it stiffens
we stiffen
you stiffen
they stiffen

Present Continuous

I am stiffening
you are stiffening
he/she/it is stiffening
we are stiffening
you are stiffening
they are stiffening

Present Perfect

I have stiffened
you have stiffened
he/she/it has stiffened
we have stiffened
you have stiffened
they have stiffened

Present Perfect Continuous

I have been stiffening
you have been stiffening
he/she/it has been stiffening
we have been stiffening
you have been stiffening
they have been stiffening

Past Indefinite

I stiffened
you stiffened
he/she/it stiffened
we stiffened
you stiffened
they stiffened

Past Continuous

I was stiffening
you were stiffening
he/she/it was stiffening
we were stiffening
you were stiffening
they were stiffening

Past Perfect

I had stiffened
you had stiffened
he/she/it had stiffened
we had stiffened
you had stiffened
they had stiffened

Past Perfect Continuous

I had been stiffening
you had been stiffening
he/she/it had been stiffening
we had been stiffening
you had been stiffening
they had been stiffening

Future Indefinite

I will stiffen
you will stiffen
he/she/it will stiffen
we will stiffen
you will stiffen
they will stiffen

Future Continuous

I will be stiffening
you will be stiffening
he/she/it will be stiffening
we will be stiffening
you will be stiffening
they will be stiffening

Future Perfect

I will have stiffened
you will have stiffened
he/she/it will have stiffened
we will have stiffened
you will have stiffened
they will have stiffened

Future Perfect Continuous

I will have been stiffening
you will have been stiffening
he/she/it will have been stiffening
we will have been stiffening
you will have been stiffening
they will have been stiffening

Conditional

Conditional Present

I would stiffen
you would stiffen
he/she/it would stiffen
we would stiffen
you would stiffen
they would stiffen

Conditional Present Continuous

I would be stiffening
you would be stiffening
he/she/it would be stiffening
we would be stiffening
you would be stiffening
they would be stiffening

Conditional Perfect

I would have stiffened
you would have stiffened
he/she/it would have stiffened
we would have stiffened
you would have stiffened
they would have stiffened

Conditional Perfect Continuous

I would have been stiffening
you would have been stiffening
he/she/it would have been stiffening
we would have been stiffening
you would have been stiffening
they would have been stiffening

Participles

Present

stiffening

Past

stiffened

Infinitives

Infinitives

to stiffen
to have stiffened
to be stiffening
to have been stiffening
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