primary auxiliaries
be = am, is ,are ,was, were, be, being, been
do=does, did ,doing, done
have=has, haveing, had
Modals modal auxiliaries
will ,would, shall must
should , may , might ought to , used to
can . could need , dare
the bear killed a man
the boy is writing a letter
the servant borke the mirror
the dog has sharp teeth
who will tie it ?
my sister watch too much TV
the star shine at night
i saw a monkey in the tree .
my friend will stay with us for another day
