| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [adv] could n't [vb infin] | 242 |
|
| 2 | i could n't [vb infin] [pos pn] | 139 |
|
| 3 | [adv] could n't [vb infin] [pos pn] | 26 |
|
