| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] be [noun] | 105 |
|
| 2 | [adv] be [noun] [noun pl] | 45 |
|
| 3 | could [adv] be [noun pl] | 29 |
|
| 4 | could be [noun] [noun pl] | 18 |
|
