| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] [to-vb] [adv] | 2114 |
|
| 2 | [vb mod] [verb] [to-vb] [adv] | 2114 |
|
| 3 | could [verb] [verb] [adv] | 489 |
|
| 4 | could [verb] [to-vb] [adv] | 146 |
|
| 5 | could [verb] [to-vb] [adv] | 74 |
|
