1. I doubt whether he was there. (±×°¡ ±×°÷¿¡ ÀÖ¾ú´ÂÁö ¾î¶²Áö Àǽɽº·´´Ù) 2. We don't doubt its being true. (±×°ÍÀÌ »ç½ÇÀ̶ó´Â °ÍÀ» ÀǽÉÄ¡ ¾Ê´Â´Ù) 3. I doubt her honesty. (³ª´Â ±×³àÀÇ Á¤Á÷¼ºÀ» ÀǽÉÇÑ´Ù) 4. Can you doubt that the earth is round? (Áö±¸°¡ µÕ±Û´Ù´Â °ÍÀ» ÀǽÉÇÒ ¼ö Àִ°¡) 5. There is some doubt whether he will be elected. (±×°¡ ´ç¼±µÉÁö ¾î¶³Áö ´Ù¼Ò ºÒÈ®½ÇÇÏ´Ù)