| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [verb] [det] [noun] | 558 |
|
| 2 | [adv] [verb] been [det] [noun] | 84 |
|
| 3 | could [adv] [verb] been [noun] | 31 |
|
| 4 | could [verb] been [det] [noun] | 30 |
|
| 5 | could [adv] [verb] been [det] | 25 |
|
