underpin 的动词变位表
Simple tenses
Present
I
underpin
you
underpin
he/she/it
underpins
we
underpin
you
underpin
they
underpin
Past
I
underpinned
you
underpinned
he/she/it
underpinned
we
underpinned
you
underpinned
they
underpinned
Present Perfect
I
have
underpinned
you
have
underpinned
he/she/it
has
underpinned
we
have
underpinned
you
have
underpinned
they
have
underpinned
Past Perfect
I
had
underpinned
you
had
underpinned
he/she/it
had
underpinned
we
had
underpinned
you
had
underpinned
they
had
underpinned
Will-Future
I
will
underpin
you
will
underpin
he/she/it
will
underpin
we
will
underpin
you
will
underpin
they
will
underpin
Going to-Future
I
am
going to
underpin
you
are
going to
underpin
he/she/it
is
going to
underpin
we
are
going to
underpin
you
are
going to
underpin
they
are
going to
underpin
Future Perfect
I
will have
underpinned
you
will have
underpinned
he/she/it
will have
underpinned
we
will have
underpinned
you
will have
underpinned
they
will have
underpinned
Continuous tenses
Present
I
am
underpinning
you
are
underpinning
he/she/it
is
underpinning
we
are
underpinning
you
are
underpinning
they
are
underpinning
Past
I
was
underpinning
you
were
underpinning
he/she/it
was
underpinning
we
were
underpinning
you
were
underpinning
they
were
underpinning
Present Perfect
I
have been
underpinning
you
have been
underpinning
he/she/it
has been
underpinning
we
have been
underpinning
you
have been
underpinning
they
have been
underpinning
Past Perfect
I
had been
underpinning
you
had been
underpinning
he/she/it
had been
underpinning
we
had been
underpinning
you
had been
underpinning
they
had been
underpinning
Will-Future
I
will be
underpinning
you
will be
underpinning
he/she/it
will be
underpinning
we
will be
underpinning
you
will be
underpinning
they
will be
underpinning
Going to-Future
I
am
going to be
underpinning
you
are
going to be
underpinning
he/she/it
is
going to be
underpinning
we
are
going to be
underpinning
you
are
going to be
underpinning
they
are
going to be
underpinning
Future Perfect
I
will have been
underpinning
you
will have been
underpinning
he/she/it
will have been
underpinning
we
will have been
underpinning
you
will have been
underpinning
they
will have been
underpinning
Conditional
Conditional
I
would
underpin
you
would
underpin
he/she/it
would
underpin
we
would
underpin
you
would
underpin
they
would
underpin
Conditional Past
I
would have
underpinned
you
would have
underpinned
he/she/it
would have
underpinned
we
would have
underpinned
you
would have
underpinned
they
would have
underpinned
Imperative
underpin
Impersonal
ing-Form
underpinning
Past Participle
underpinned