| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [verb] [pron] could [vb infin] | 2010 |
|
| 2 | [verb] [pron] could n't [vb infin] | 590 |
|
| 3 | [pers pn] [verb] [pron] could n't | 374 |
|
| 4 | [pers pn] [pron] could n't [vb infin] | 108 |
|
| 5 | [pers pn] [verb] could n't [vb infin] | 6 |
|
