| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could n't he [verb] | 61 |
|
| 2 | could n't he [vb infin] | 59 |
|
| 3 | could n't he have | 15 |
|
| 4 | could n't he have | 15 |
|
| 5 | could n't he see | 9 |
|
| 6 | could n't he see | 9 |
|
