| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which could [verb] | 1536 |
|
| 2 | which [vb mod] provide | 267 |
|
| 3 | which [modal v] provide | 267 |
|
| 4 | [pron] could provide | 145 |
|
| 5 | which could provide | 27 |
|
