To inquire into or study in order to ascertain facts or information.
Infinitiveinvestigate
Past simpleinvestigated
Past participleinvestigated
-ing forminvestigating
Full conjugation of the English verb to investigate (past simple investigated,
past participle investigated):
present simple and continuous, past simple and continuous, present perfect, past perfect,
future, conditional, subjunctive and imperative, with all persons.
Indicative
Present simple
I
investigate
you
investigate
he/she/it
investigates
we
investigate
you
investigate
they
investigate
Present continuous
I
am investigating
you
are investigating
he/she/it
is investigating
we
are investigating
you
are investigating
they
are investigating
Present perfect
I
have investigated
you
have investigated
he/she/it
has investigated
we
have investigated
you
have investigated
they
have investigated
Present perfect continuous
I
have been investigating
you
have been investigating
he/she/it
has been investigating
we
have been investigating
you
have been investigating
they
have been investigating
Past simple
I
investigated
you
investigated
he/she/it
investigated
we
investigated
you
investigated
they
investigated
Past continuous
I
was investigating
you
were investigating
he/she/it
was investigating
we
were investigating
you
were investigating
they
were investigating
Past perfect
I
had investigated
you
had investigated
he/she/it
had investigated
we
had investigated
you
had investigated
they
had investigated
Past perfect continuous
I
had been investigating
you
had been investigating
he/she/it
had been investigating
we
had been investigating
you
had been investigating
they
had been investigating
Future simple
I
will investigate
you
will investigate
he/she/it
will investigate
we
will investigate
you
will investigate
they
will investigate
Future continuous
I
will be investigating
you
will be investigating
he/she/it
will be investigating
we
will be investigating
you
will be investigating
they
will be investigating
Future perfect
I
will have investigated
you
will have investigated
he/she/it
will have investigated
we
will have investigated
you
will have investigated
they
will have investigated
Future perfect continuous
I
will have been investigating
you
will have been investigating
he/she/it
will have been investigating
we
will have been investigating
you
will have been investigating
they
will have been investigating
Conditional
Present
I
would investigate
you
would investigate
he/she/it
would investigate
we
would investigate
you
would investigate
they
would investigate
Present continuous
I
would be investigating
you
would be investigating
he/she/it
would be investigating
we
would be investigating
you
would be investigating
they
would be investigating
Perfect
I
would have investigated
you
would have investigated
he/she/it
would have investigated
we
would have investigated
you
would have investigated
they
would have investigated
Perfect continuous
I
would have been investigating
you
would have been investigating
he/she/it
would have been investigating
we
would have been investigating
you
would have been investigating
they
would have been investigating
Subjunctive
Present
that I
investigate
that you
investigate
that he/she/it
investigate
that we
investigate
that you
investigate
that they
investigate
Past
if I
investigated
if you
investigated
if he/she/it
investigated
if we
investigated
if you
investigated
if they
investigated
Imperative
Affirmative
you
investigate
we
let's investigate
Negative
you
don't investigate
we
let's not investigate
Non-finite forms
Infinitive
to investigate
Perfect infinitive
to have investigated
Present participle / gerund
investigating
Past participle
investigated
Conjugations: Wiktionary (via kaikki.org), adapted, licensed under CC BY-SA 4.0.