| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] i [verb] | 27 |
|
| 2 | could n't i [verb] | 27 |
|
| 3 | could [not/n't] i [verb] | 27 |
|
| 4 | could [not/n't] i [vb infin] | 26 |
|
| 5 | could [not/n't] i have | 6 |
|
| 6 | could [not/n't] i have | 6 |
|
