| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [verb] [prep] a | 329 |
|
| 2 | [indef pn] could [adv] [verb] [prep] | 59 |
|
| 3 | [indef pn] [adv] [verb] [prep] a | 43 |
|
| 4 | [indef pn] could [adv] [verb] a | 29 |
|
| 5 | [indef pn] could [verb] [prep] a | 15 |
|
