To make strong or stronger; to add strength to; to increase the strength of; to fortify.
Infinitivestrengthen
Past simplestrengthened
Past participlestrengthened
-ing formstrengthening
Full conjugation of the English verb to strengthen (past simple strengthened,
past participle strengthened):
present simple and continuous, past simple and continuous, present perfect, past perfect,
future, conditional, subjunctive and imperative, with all persons.
Indicative
Present simple
I
strengthen
you
strengthen
he/she/it
strengthens
we
strengthen
you
strengthen
they
strengthen
Present continuous
I
am strengthening
you
are strengthening
he/she/it
is strengthening
we
are strengthening
you
are strengthening
they
are strengthening
Present perfect
I
have strengthened
you
have strengthened
he/she/it
has strengthened
we
have strengthened
you
have strengthened
they
have strengthened
Present perfect continuous
I
have been strengthening
you
have been strengthening
he/she/it
has been strengthening
we
have been strengthening
you
have been strengthening
they
have been strengthening
Past simple
I
strengthened
you
strengthened
he/she/it
strengthened
we
strengthened
you
strengthened
they
strengthened
Past continuous
I
was strengthening
you
were strengthening
he/she/it
was strengthening
we
were strengthening
you
were strengthening
they
were strengthening
Past perfect
I
had strengthened
you
had strengthened
he/she/it
had strengthened
we
had strengthened
you
had strengthened
they
had strengthened
Past perfect continuous
I
had been strengthening
you
had been strengthening
he/she/it
had been strengthening
we
had been strengthening
you
had been strengthening
they
had been strengthening
Future simple
I
will strengthen
you
will strengthen
he/she/it
will strengthen
we
will strengthen
you
will strengthen
they
will strengthen
Future continuous
I
will be strengthening
you
will be strengthening
he/she/it
will be strengthening
we
will be strengthening
you
will be strengthening
they
will be strengthening
Future perfect
I
will have strengthened
you
will have strengthened
he/she/it
will have strengthened
we
will have strengthened
you
will have strengthened
they
will have strengthened
Future perfect continuous
I
will have been strengthening
you
will have been strengthening
he/she/it
will have been strengthening
we
will have been strengthening
you
will have been strengthening
they
will have been strengthening
Conditional
Present
I
would strengthen
you
would strengthen
he/she/it
would strengthen
we
would strengthen
you
would strengthen
they
would strengthen
Present continuous
I
would be strengthening
you
would be strengthening
he/she/it
would be strengthening
we
would be strengthening
you
would be strengthening
they
would be strengthening
Perfect
I
would have strengthened
you
would have strengthened
he/she/it
would have strengthened
we
would have strengthened
you
would have strengthened
they
would have strengthened
Perfect continuous
I
would have been strengthening
you
would have been strengthening
he/she/it
would have been strengthening
we
would have been strengthening
you
would have been strengthening
they
would have been strengthening
Subjunctive
Present
that I
strengthen
that you
strengthen
that he/she/it
strengthen
that we
strengthen
that you
strengthen
that they
strengthen
Past
if I
strengthened
if you
strengthened
if he/she/it
strengthened
if we
strengthened
if you
strengthened
if they
strengthened
Imperative
Affirmative
you
strengthen
we
let's strengthen
Negative
you
don't strengthen
we
let's not strengthen
Non-finite forms
Infinitive
to strengthen
Perfect infinitive
to have strengthened
Present participle / gerund
strengthening
Past participle
strengthened
Conjugations: Wiktionary (via kaikki.org), adapted, licensed under CC BY-SA 4.0.