| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] n't [vb infin] | 56886 |
|
| 2 | [vb mod] n't [vb infin] | 56886 |
|
| 3 | could [adv] [vb infin] | 32770 |
|
| 4 | could [not/n't] [vb infin] | 21338 |
|
| 5 | could not [vb infin] | 21316 |
|
| 6 | could n't [verb] | 12359 |
|
| 7 | could n't [vb infin] | 12348 |
|
