| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they could [adv] [adv] [verb] | 155 |
|
| 2 | could [adv] [adv] [verb] [to-vb] | 104 |
|
| 3 | they could [adv] [verb] [to-vb] | 74 |
|
| 4 | they [adv] [adv] [verb] [to-vb] | 49 |
|
| 5 | they could [adv] [verb] [to-vb] | 23 |
|
