| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [pron] [verb] [prep] a | 2350 |
|
| 2 | [pron] could [verb] [prep] a | 577 |
|
| 3 | [verb] [pron] could [verb] [prep] | 448 |
|
| 4 | [verb] [pron] could [verb] a | 285 |
|
| 5 | [verb] could [verb] [prep] a | 8 |
|
