| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] in a | 2945 |
|
| 2 | could [adv] [verb] a | 1494 |
|
| 3 | could [adv] [verb] in | 416 |
|
| 4 | could [verb] in a | 147 |
|
