demand / insist / propose / recommend / suggest 뒤에 동사원형을 사용
■ John demanded that Lisa apologize to him.
■ I insisted he have dinner with us.
■ The doctor recommended that i rest for a few days.
■ What do you suggest I do?
It's essential / imperative / important / necessary / vital 뒤에 동사원형을 사용
■ It's essential that everyone be at work by 9:00 tomorrow morning. No exceptions.
■ It's imperative that the government do something about health care.
that절 대신 for… to…를 써도 된다.
■ It's essential for everyone to be at work by 9:00 tomorrow morning.
■ It's imperative for the government to do something about health care.
부정문은 not+동사원형을 사용
■ The doctor strongly recommended that I not go to work for two days.
■ It's very important that you not miss this appointment with your eye doctor.
현재, 과거, 미래 시제 문장에 모두 동사원형 사용가능
■ I insist you come with us.
■ They insisted I go with them.
be동사도 동사의 원형 be를 사용, 주로 be+과거분사의 형태로 쓰임
■ I insisted that something be done about the problem.
■ It's essential that this medicine not be taken on an empty stomach.
■ The airline recommended we be at the airport two hours before our flight.
insist와 suggest 뒤에는 동명사 사용 가능
■ They insisted on paying for dinner.
■ It is a beautoful evening, so I suggest going for a walk.
insist나 suggest 뒤에는 부정사 사용 금지
■ She suggested that he buy some new clothes. (suggested hime to buy 안됨)
■ He insists on going with us. (he insists to go 안됨)
(Grammar In Use)
