| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [pers pn] could [verb] a | 755 |
|
| 2 | [vb infin] [conj] [pers pn] [verb] a | 429 |
|
| 3 | [vb infin] [conj] [pers pn] could [verb] | 203 |
|
| 4 | [vb infin] [pers pn] could [verb] a | 51 |
|
