____________________
are
an
essential
part
of
____________________
.
____________________
form
their
past
tense
by
adding
-
ed
to
the
base
form
,
while
irregular
verbs
have
unique
past
tense
forms
that
do
not
follow
a
specific
pattern
.
It
is
important
to
memorize
the
past
tense
forms
of
both
regular
and
irregular
verbs
to
communicate
effectively
in
English
.
