Of a duck, to make its characteristic vocalisation.
Infinitivequack
Past simplequacked
Past participlequacked
-ing formquacking
Full conjugation of the English verb to quack (past simple quacked,
past participle quacked):
present simple and continuous, past simple and continuous, present perfect, past perfect,
future, conditional, subjunctive and imperative, with all persons.
Indicative
Present simple
I
quack
you
quack
he/she/it
quacks
we
quack
you
quack
they
quack
Present continuous
I
am quacking
you
are quacking
he/she/it
is quacking
we
are quacking
you
are quacking
they
are quacking
Present perfect
I
have quacked
you
have quacked
he/she/it
has quacked
we
have quacked
you
have quacked
they
have quacked
Present perfect continuous
I
have been quacking
you
have been quacking
he/she/it
has been quacking
we
have been quacking
you
have been quacking
they
have been quacking
Past simple
I
quacked
you
quacked
he/she/it
quacked
we
quacked
you
quacked
they
quacked
Past continuous
I
was quacking
you
were quacking
he/she/it
was quacking
we
were quacking
you
were quacking
they
were quacking
Past perfect
I
had quacked
you
had quacked
he/she/it
had quacked
we
had quacked
you
had quacked
they
had quacked
Past perfect continuous
I
had been quacking
you
had been quacking
he/she/it
had been quacking
we
had been quacking
you
had been quacking
they
had been quacking
Future simple
I
will quack
you
will quack
he/she/it
will quack
we
will quack
you
will quack
they
will quack
Future continuous
I
will be quacking
you
will be quacking
he/she/it
will be quacking
we
will be quacking
you
will be quacking
they
will be quacking
Future perfect
I
will have quacked
you
will have quacked
he/she/it
will have quacked
we
will have quacked
you
will have quacked
they
will have quacked
Future perfect continuous
I
will have been quacking
you
will have been quacking
he/she/it
will have been quacking
we
will have been quacking
you
will have been quacking
they
will have been quacking
Conditional
Present
I
would quack
you
would quack
he/she/it
would quack
we
would quack
you
would quack
they
would quack
Present continuous
I
would be quacking
you
would be quacking
he/she/it
would be quacking
we
would be quacking
you
would be quacking
they
would be quacking
Perfect
I
would have quacked
you
would have quacked
he/she/it
would have quacked
we
would have quacked
you
would have quacked
they
would have quacked
Perfect continuous
I
would have been quacking
you
would have been quacking
he/she/it
would have been quacking
we
would have been quacking
you
would have been quacking
they
would have been quacking
Subjunctive
Present
that I
quack
that you
quack
that he/she/it
quack
that we
quack
that you
quack
that they
quack
Past
if I
quacked
if you
quacked
if he/she/it
quacked
if we
quacked
if you
quacked
if they
quacked
Imperative
Affirmative
you
quack
we
let's quack
Negative
you
don't quack
we
let's not quack
Non-finite forms
Infinitive
to quack
Perfect infinitive
to have quacked
Present participle / gerund
quacking
Past participle
quacked
Conjugations: Wiktionary (via kaikki.org), adapted, licensed under CC BY-SA 4.0.