| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [verb] [art] | 1905 |
|
| 2 | [modal v] [adv] cause [art] | 67 |
|
| 3 | could [adv] cause [art] | 6 |
|
| 4 | could [adv] cause [art] | 6 |
|
