| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [vb pp] a [adj] | 17874 |
|
| 2 | could [verb] a [adj] | 1822 |
|
| 3 | could [verb] [vb pp] [adj] | 535 |
|
| 4 | could [verb] [vb pp] a | 335 |
|
