| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [prep] be [adv] | 28 |
|
| 2 | could [vb infin] to be [adv] | 22 |
|
| 3 | could [vb infin] to be [adv] | 22 |
|
| 4 | could [vb infin] [prep] be [adv] | 21 |
|
| 5 | could prove [prep] be [adv] | 5 |
|
| 6 | could [vb infin] [prep] being [adv] | 5 |
|
