Present Simple
Present Continuous
Present Perfect Simple
Present Perfect Continuous
I
walk
you*
walk
he
walks
she
walks
it
walks
we
walk
they
walk
I
am
(I'm+)
walking
you
are
(you're)
walking
he
is
(he's)
walking
she
is
(she's)
walking
it
is
(it's)
walking
we
are
(we're)
walking
they
are
(they're)
walking
I
have
(I've)
walked
you
have
(you've)
walked
he
has
(he's)
walked
she
has
(she's)
walked
it
is
(it's)
walked
we
have
(we've)
walked
they
have
(they've)
walked
I
have
been
walking
you
have
been
walking
he
has
been
walking
she
has
been
walking
it
has
been
walking
we
have
been
walking
they
have
been
walking