| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [verb] [pron] could [verb] a | 6 |
|
| 2 | [noun pl] [verb] [pers pn] could [verb] a | 6 |
|
| 3 | [noun pl] [verb] [pron] could [vb infin] a | 6 |
|
