| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [verb] | 45395 |
|
| 2 | which [modal v] [verb] | 15842 |
|
| 3 | which [vb mod] [verb] | 15842 |
|
| 4 | [Wh det] could [verb] | 1704 |
|
| 5 | which could [verb] | 1536 |
|
| 6 | which could [verb] | 1536 |
|
