| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [adv] | 7332 |
|
| 2 | [vb infin] as [adv] | 358 |
|
| 3 | could [vb infin] as | 95 |
|
| 4 | could as [adv] | 10 |
|
