| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which could [adv] | 729 |
|
| 2 | which could [adv] | 475 |
|
| 3 | [pron] could easily | 306 |
|
| 4 | which [modal v] easily | 77 |
|
| 5 | which could easily | 30 |
|
