| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [modal v] [be] [prep] | 367 |
|
| 2 | [modal v] [be] thought [prep] | 234 |
|
| 3 | which [be] thought [prep] | 50 |
|
| 4 | which [modal v] [be] thought | 25 |
|
