1.動詞不定式的形式
時態(tài) 主動態(tài) 被動態(tài)
一般式 to do to be done
進行式 to be doing
完成式 to have done to have been done
完成進行式 to have been doing
例1:John said that he had run in order to catch the bus. (一般式的主動態(tài))
例2:He hated to be misunderstood by others. (一般式的被動態(tài))
例3:He pretended to be listening attentively. (進行式)
例4:He intended to have told you that. (完成式主動態(tài))
例5:This work of art seemed to have been created several centuries ago. (完成式的被動態(tài))
例6:We’re happy to have been working with you. (完成進行式)