| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] could [vb infin] been [noun] | 57 |
|
| 2 | [pers pn] could have been [noun] | 56 |
|
| 3 | [pers pn] could have been [noun] | 55 |
|
| 4 | it could [verb] been [noun] | 43 |
|
| 5 | [pers pn] could [verb] been [noun prp] | 33 |
|
| 6 | [pers pn] could [verb] been [noun sg] | 14 |
|
| 7 | [pers pn] could [verb] been [noun pl] | 10 |
|
| 8 | they could [verb] been [noun] | 5 |
|
