used to tell sb to do sth :
Be sure to give your family my regards.
HELP NOTE : In spoken English and plus another verb can be used instead of to and the infinitive:
Be sure and call me tomorrow.
used to tell sb to do sth :
Be sure to give your family my regards.
HELP NOTE : In spoken English and plus another verb can be used instead of to and the infinitive:
Be sure and call me tomorrow.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005