To make stiff.
Infinitivestiffen
Past simplestiffened
Past participlestiffened
-ing formstiffening
Full conjugation of the English verb to stiffen (past simple stiffened,
past participle stiffened):
present simple and continuous, past simple and continuous, present perfect, past perfect,
future, conditional, subjunctive and imperative, with all persons.
Indicative
Present simple
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 simple
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 simple
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
Present
I
would stiffen
you
would stiffen
he/she/it
would stiffen
we
would stiffen
you
would stiffen
they
would stiffen
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
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
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
Subjunctive
Present
that I
stiffen
that you
stiffen
that he/she/it
stiffen
that we
stiffen
that you
stiffen
that they
stiffen
Past
if I
stiffened
if you
stiffened
if he/she/it
stiffened
if we
stiffened
if you
stiffened
if they
stiffened
Imperative
Affirmative
you
stiffen
we
let's stiffen
Negative
you
don't stiffen
we
let's not stiffen
Non-finite forms
Infinitive
to stiffen
Perfect infinitive
to have stiffened
Present participle / gerund
stiffening
Past participle
stiffened
Conjugations: Wiktionary (via kaikki.org), adapted, licensed under CC BY-SA 4.0.