| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] [verb] been [det] [noun] | 41 |
|
| 2 | [pron] could [verb] been [det] [noun] | 23 |
|
| 3 | it could [verb] been [adj] [noun] | 16 |
|
| 4 | [pers pn] could [verb] been [det] [noun] | 11 |
|
| 5 | it could [verb] [be] [det] [noun] | 7 |
|
| 6 | it could [verb] [been] [det] [noun] | 7 |
|
| 7 | it could [verb] be [det] [noun] | 7 |
|
| 8 | it could [verb] been [det] [noun] | 7 |
|
