| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must [verb] been [adj] | 446 |
|
| 2 | [pron] [modal v] [verb] been [det] | 262 |
|
| 3 | [pron] [vb mod] [verb] been [det] | 262 |
|
| 4 | [pron] must [verb] [be] [det] | 85 |
|
| 5 | [pron] must [verb] be [det] | 85 |
|
| 6 | [pron] must [verb] [been] [det] | 79 |
|
| 7 | [pron] must [verb] been [det] | 79 |
|
