| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must [verb] been | 1981 |
|
| 2 | [pron] [verb] been many | 148 |
|
| 3 | must [verb] been many | 20 |
|
| 4 | [pron] must [verb] many | 5 |
|
