Conjugation of the verb "stiffen"

Conjugation of the verb stiffen[ˈstɪfn], regular     

stiffen not stiffenstiffen?
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

Indicative

Present Indefinite

I don't stiffen
you don't stiffen
he/she/it doesn't stiffen
we don't stiffen
you don't stiffen
they don't stiffen

Present Continuous

I am not stiffening
you aren't stiffening
he/she/it isn't stiffening
we aren't stiffening
you aren't stiffening
they aren't stiffening

Present Perfect

I haven't stiffened
you haven't stiffened
he/she/it hasn't stiffened
we haven't stiffened
you haven't stiffened
they haven't stiffened

Present Perfect Continuous

I haven't been stiffening
you haven't been stiffening
he/she/it hasn't been stiffening
we haven't been stiffening
you haven't been stiffening
they haven't been stiffening

Past Indefinite

I didn't stiffen
you didn't stiffen
he/she/it didn't stiffen
we didn't stiffen
you didn't stiffen
they didn't stiffen

Past Continuous

I wasn't stiffening
you weren't stiffening
he/she/it wasn't stiffening
we weren't stiffening
you weren't stiffening
they weren't stiffening

Past Perfect

I hadn't stiffened
you hadn't stiffened
he/she/it hadn't stiffened
we hadn't stiffened
you hadn't stiffened
they hadn't stiffened

Past Perfect Continuous

I hadn't been stiffening
you hadn't been stiffening
he/she/it hadn't been stiffening
we hadn't been stiffening
you hadn't been stiffening
they hadn't been stiffening

Future Indefinite

I shan't / won't stiffen
you won't stiffen
he/she/it won't stiffen
we shan't / won't stiffen
you won't stiffen
they won't stiffen

Future Continuous

I shan't / won't be stiffening
you won't be stiffening
he/she/it won't be stiffening
we shan't / won't be stiffening
you won't be stiffening
they won't be stiffening

Future Perfect

I shan't / won't have stiffened
you won't have stiffened
he/she/it won't have stiffened
we shan't / won't have stiffened
you won't have stiffened
they won't have stiffened

Future Perfect Continuous

I shan't / won't have been stiffening
you won't have been stiffening
he/she/it won't have been stiffening
we shan't / won't have been stiffening
you won't have been stiffening
they won't have been stiffening

Indicative

Present Indefinite

do I stiffen?
do you stiffen?
does he/she/it stiffen?
do we stiffen?
do you stiffen?
do they stiffen?

Present Continuous

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

Present Perfect

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

Present Perfect Continuous

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

Past Indefinite

did I stiffen?
did you stiffen?
did he/she/it stiffen?
did we stiffen?
did you stiffen?
did they stiffen?

Past Continuous

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

Past Perfect

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

Past Perfect Continuous

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

Future Indefinite

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

Future Continuous

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

Future Perfect

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

Future Perfect Continuous

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

Conditional

Conditional Present

I wouldn't stiffen
you wouldn't stiffen
he/she/it wouldn't stiffen
we wouldn't stiffen
you wouldn't stiffen
they wouldn't stiffen

Conditional Present Continuous

I wouldn't be stiffening
you wouldn't be stiffening
he/she/it wouldn't be stiffening
we wouldn't be stiffening
you wouldn't be stiffening
they wouldn't be stiffening

Conditional Perfect

I wouldn't have stiffened
you wouldn't have stiffened
he/she/it wouldn't have stiffened
we wouldn't have stiffened
you wouldn't have stiffened
they wouldn't have stiffened

Conditional Perfect Continuous

I wouldn't have been stiffening
you wouldn't have been stiffening
he/she/it wouldn't have been stiffening
we wouldn't have been stiffening
you wouldn't have been stiffening
they wouldn't have been stiffening

Conditional

Conditional Present

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

Conditional Present Continuous

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

Conditional Perfect

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

Conditional Perfect Continuous

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