| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [adv] [vb infin] [pron] to | 11 |
|
| 2 | could [adv] [adv] [vb infin] [pers pn] to | 8 |
|
| 3 | could [not/n't] [adv] [vb infin] [pron] to | 7 |
|
| 4 | could not [adv] [vb infin] [pron] to | 7 |
|
