| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they could [adv] [adv] [vb infin] [to-vb] | 5 |
|
| 2 | they could [adv] [adv] [verb] [to-vb] | 5 |
|
| 3 | they could [adv] [adv] [verb] [to-vb] | 5 |
|
