| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] a | 4306 |
|
| 2 | [coord] [vb infin] a | 1904 |
|
| 3 | [coord] could [vb infin] | 1225 |
|
| 4 | [coord] could a | 6 |
|
