| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] [verb] been [prep] [art] | 85 |
|
| 2 | [pron] must [verb] been [prep] [art] | 55 |
|
| 3 | [pers pn] must [verb] been [prep] [art] | 50 |
|
| 4 | it must [verb] been [prep] [art] | 28 |
|
| 5 | it must [verb] been [prep] [art] | 28 |
|
| 6 | it must [verb] [been] [prep] [art] | 28 |
|
| 7 | it must [verb] be [prep] [art] | 28 |
|
| 8 | it must [verb] [be] [prep] [art] | 28 |
|
| 9 | it must [verb] been [prep] [art] | 28 |
|
