| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could n't [adv] [verb] | 844 |
|
| 2 | could n't he [verb] | 61 |
|
| 3 | could he [adv] [verb] | 51 |
|
| 4 | n't he [adv] [verb] | 48 |
|
| 5 | could n't he [adv] | 8 |
|
