| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [verb] a | 109758 |
|
| 2 | [pron] could [verb] | 45395 |
|
| 3 | could [verb] a | 4858 |
|
| 4 | [pron] could a | 21 |
|
