| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [verb] [adv] [adv] [subord] | 96 |
|
| 2 | could [verb] [adv] [adv] [subord] | 96 |
|
| 3 | [modal v] [verb] [adv] early [subord] | 15 |
|
| 4 | could [verb] [adv] early [conj] | 7 |
|
| 5 | could [verb] [adv] early [subord] | 6 |
|
