| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] could [vb infin] [adv] a | 169 |
|
| 2 | [pers pn] could [vb infin] [adv] for | 93 |
|
| 3 | [pers pn] could [vb infin] for a | 72 |
|
| 4 | could [vb infin] [adv] for a | 37 |
|
| 5 | [pers pn] [vb infin] [adv] for a | 33 |
|
