| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [prep] | 14387 |
|
| 2 | [subord] [modal v] [be] | 1816 |
|
| 3 | [subord] [be] [prep] | 661 |
|
| 4 | [subord] [modal v] [prep] | 57 |
|
