| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [not/n't] [vb infin] | 14304 |
|
| 2 | [adv] could [not/n't] [vb infin] | 955 |
|
| 3 | [pron] [adv] could [not/n't] | 783 |
|
| 4 | [pron] [adv] could [vb infin] | 282 |
|
| 5 | [pron] [adv] [not/n't] [vb infin] | 45 |
|
