| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | there [verb] been [prep] [adv] | 44 |
|
| 2 | must [verb] been [prep] [adv] | 41 |
|
| 3 | there must [verb] been [adv] | 20 |
|
| 4 | there must [verb] been [prep] | 14 |
|
