| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [pron] at the | 17 |
|
| 2 | could [vb infin] [pron] at the | 17 |
|
| 3 | could [vb infin] [pron] at the | 17 |
|
| 4 | could [vb infin] [pers pn] at the | 14 |
|
