| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [adv] [vb infin] | 2430 |
|
| 2 | and could [adv] [vb infin] | 727 |
|
| 3 | and could [adv] [adv] | 93 |
|
| 4 | and [adv] [adv] [vb infin] | 15 |
|
