- S + V + O(=疑問詞 + to do)
a. They learned how to use a parachute.
b. I did not know what to say to her at that time.
- S + V + O(=if[whether]で始まる節)
a. I wonder if[whether] she enjoyed the concert.
b. Do you know if the bank is open today?
a’. Did she enjoy the concert?
- 3.S + V + O + C(=形容詞)
a. I found the fish fresh and delicious.
b. They soon proved all the fears groundless.
a’. The fish was fresh and delicious.
- 4.現在完了：have[has] + 過去分詞
a. I have already read today’s paper.
b. Have you ever seen skydiving?
c. We have known each other for about ten years.
- 5.過去完：had + 過去分詞
a. When the parachute finally opened, he had fallen 2,000 feet!
b. She had never seen snow before she came to Japan.