| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [prep] been [adj] | 51 |
|
| 2 | must [prep] been [adj] | 41 |
|
| 3 | must [prep] been [adj] | 16 |
|
| 4 | must [prep] [be] [adj] | 16 |
|
| 5 | must [prep] be [adj] | 16 |
|
| 6 | must [prep] [been] [adj] | 16 |
|
