| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must [adv] [verb] been [prep] | 6 |
|
| 2 | must [adv] [verb] been [verb] [prep] | 20 |
|
| 3 | must [adv] [verb] been [vb pp] [prep] | 19 |
|
| 4 | must [adv] [verb] been [adj] [prep] | 17 |
|
| 5 | must [adv] [verb] been [adj] [prep] | 16 |
|
| 6 | must [adv] [verb] been [prep] the | 5 |
|
| 7 | must [adv] [verb] been [prep] the | 5 |
|
| 8 | must [adv] [verb] been [prep] [art] | 5 |
|
| 9 | must [adv] [verb] been [prep] [art] | 5 |
|
