【論点23：不定詞の副詞的用法を使う構文】

① Young ladies are difficult to manage. ② Even if the elevator is crowded with men and there is only one lady at the back of the car, the men will make way for her to get out. Then they will get out, too. ③ I should be sorry to have to quarrel with you. =I should be sorry if I have to quarrel with you. ④ The neighbours must have annoyed you very much for you to speak in that way about them. ⑤ He went over to Africa, never to return. ⑥ To be sure, she is not beautiful, but she is pretty. ⑦ He was large, not to say fat. ⑧ Thinking this girl would be nervous at meeting a strange man in such a lonely place in the dark I stepped well aside, so as to give her plenty of room to pass. ⑨ She spoke so loudly as to be heard by everyone. ⑩ Now and again I have had horrible dreams, but not enough of them to make me lose my delight in dreams. ⑪ In a word, I was too cowardly to do what I knew to be right.