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