| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] a [adv] | 147 |
|
| 2 | and could [vb infin] [adv] | 72 |
|
| 3 | and could [vb infin] a | 57 |
|
| 4 | and [vb infin] a [adv] | 27 |
|
