| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it [modal v] [verb] been [adj] | 60 |
|
| 2 | [subord] it [vb mod] [verb] been [adj] | 60 |
|
| 3 | [conj] it must [verb] been [adj] | 28 |
|
| 4 | [subord] [pron] must [verb] been [adj] | 14 |
|
| 5 | [subord] it must [verb] be [adj] | 8 |
|
| 6 | [subord] it must [verb] [be] [adj] | 8 |
|
| 7 | [subord] it must [verb] been [adj] | 8 |
|
| 8 | [subord] it must [verb] [been] [adj] | 8 |
|
