| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [verb] as [adv] [subord] | 31 |
|
| 2 | could [verb] as [adv] as | 31 |
|
| 3 | could [vb infin] as [adv] [subord] | 31 |
|
| 4 | could [verb] as long [subord] | 5 |
|
| 5 | could [verb] as early [subord] | 5 |
|
