| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] it could n't [vb infin] | 10 |
|
| 2 | [adv] it could n't [vb infin] | 10 |
|
| 3 | [adv] it could n't [vb infin] | 8 |
|
| 4 | [adv] it could n't have | 5 |
|
