| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could be [prep] | 381 |
|
| 2 | as [pron] could [prep] | 174 |
|
| 3 | as [pron] could be | 109 |
|
| 4 | as could be [prep] | 7 |
|
