| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] be [adv] | 582 |
|
| 2 | [adv] be [adv] [conj] | 549 |
|
| 3 | could [adv] be [conj] | 73 |
|
| 4 | could be [adv] [conj] | 35 |
|
| 5 | could [adv] [adv] [conj] | 12 |
|
