To underachieve; to fail to reach standards or expectations, especially with respect to a financial investment.
Infinitiveunderperform
Past simpleunderperformed
Past participleunderperformed
-ing formunderperforming
Full conjugation of the English verb to underperform (past simple underperformed,
past participle underperformed):
present simple and continuous, past simple and continuous, present perfect, past perfect,
future, conditional, subjunctive and imperative, with all persons.
Indicative
Present simple
I
underperform
you
underperform
he/she/it
underperforms
we
underperform
you
underperform
they
underperform
Present continuous
I
am underperforming
you
are underperforming
he/she/it
is underperforming
we
are underperforming
you
are underperforming
they
are underperforming
Present perfect
I
have underperformed
you
have underperformed
he/she/it
has underperformed
we
have underperformed
you
have underperformed
they
have underperformed
Present perfect continuous
I
have been underperforming
you
have been underperforming
he/she/it
has been underperforming
we
have been underperforming
you
have been underperforming
they
have been underperforming
Past simple
I
underperformed
you
underperformed
he/she/it
underperformed
we
underperformed
you
underperformed
they
underperformed
Past continuous
I
was underperforming
you
were underperforming
he/she/it
was underperforming
we
were underperforming
you
were underperforming
they
were underperforming
Past perfect
I
had underperformed
you
had underperformed
he/she/it
had underperformed
we
had underperformed
you
had underperformed
they
had underperformed
Past perfect continuous
I
had been underperforming
you
had been underperforming
he/she/it
had been underperforming
we
had been underperforming
you
had been underperforming
they
had been underperforming
Future simple
I
will underperform
you
will underperform
he/she/it
will underperform
we
will underperform
you
will underperform
they
will underperform
Future continuous
I
will be underperforming
you
will be underperforming
he/she/it
will be underperforming
we
will be underperforming
you
will be underperforming
they
will be underperforming
Future perfect
I
will have underperformed
you
will have underperformed
he/she/it
will have underperformed
we
will have underperformed
you
will have underperformed
they
will have underperformed
Future perfect continuous
I
will have been underperforming
you
will have been underperforming
he/she/it
will have been underperforming
we
will have been underperforming
you
will have been underperforming
they
will have been underperforming
Conditional
Present
I
would underperform
you
would underperform
he/she/it
would underperform
we
would underperform
you
would underperform
they
would underperform
Present continuous
I
would be underperforming
you
would be underperforming
he/she/it
would be underperforming
we
would be underperforming
you
would be underperforming
they
would be underperforming
Perfect
I
would have underperformed
you
would have underperformed
he/she/it
would have underperformed
we
would have underperformed
you
would have underperformed
they
would have underperformed
Perfect continuous
I
would have been underperforming
you
would have been underperforming
he/she/it
would have been underperforming
we
would have been underperforming
you
would have been underperforming
they
would have been underperforming
Subjunctive
Present
that I
underperform
that you
underperform
that he/she/it
underperform
that we
underperform
that you
underperform
that they
underperform
Past
if I
underperformed
if you
underperformed
if he/she/it
underperformed
if we
underperformed
if you
underperformed
if they
underperformed
Imperative
Affirmative
you
underperform
we
let's underperform
Negative
you
don't underperform
we
let's not underperform
Non-finite forms
Infinitive
to underperform
Perfect infinitive
to have underperformed
Present participle / gerund
underperforming
Past participle
underperformed
Conjugations: Wiktionary (via kaikki.org), adapted, licensed under CC BY-SA 4.0.