| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could n't [vb infin] [pron] [to-vb] | 126 |
|
| 2 | could n't [vb infin] [pron] at | 43 |
|
| 3 | n't [vb infin] [pron] [to-vb] at | 15 |
|
| 4 | could n't [vb infin] [to-vb] at | 7 |
|
