| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [verb] [prep] a | 329 |
|
| 2 | [noun prp] [adv] [verb] [prep] a | 314 |
|
| 3 | [noun prp] could [adv] [verb] [prep] | 214 |
|
| 4 | [noun prp] could [adv] [verb] a | 99 |
|
| 5 | [noun prp] could [verb] [prep] a | 39 |
|
