時制

１　現実　-----  ａ.現在　=======＞現在形、現在進行形、現在完了形
　　　　　　　　　　  b.過去　=======＞過去形、過去進行形、過去完了形

２　非現実　---　a.現在　=======＞仮定法過去[過去形、could,would,might,should+原形]
　　　　　　　　　 　b.過去   =======＞仮定法過去完了[過去完了形、could,would,might,should+have+過去分詞]

過去問で考えてみよう。
I wonder if Stella has lost my number.  (     ) her call for the kast two hours.
1. I'd expected
2. I'll have expected
3. I'm expecting
4. I've been expecting
[2001追試]

"Are John and Mary still living in New York?"
"No, they (          ) to Dallas.
1. are just moved
2. had just moved
3. have just moved
4. will just move
[1998 追試]

"I didn't go to class yesterday because my car broke down."
"You (      ) mine. I wasn't using it.
1. could borrow
2. could have barrowed
3. may borrow
4. may have borrowed
[1998 追試]