| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [vb infin] [pers pn] at the | 17 |
|
| 2 | could [not/n't] [verb] [pers pn] at the | 13 |
|
| 3 | could not [verb] [pers pn] at the | 13 |
|
| 4 | could [adv] [verb] it at the | 10 |
|
| 5 | could n't [verb] [pers pn] at the | 10 |
|
