| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] could [not/n't] [vb infin] what | 19 |
|
| 2 | [adv] could [not/n't] [vb infin] what | 19 |
|
| 3 | [adv] could n't [vb infin] what | 12 |
|
| 4 | [adv] could not [vb infin] what | 7 |
|
| 5 | still could [not/n't] [vb infin] what | 7 |
|
| 6 | still could [not/n't] [vb infin] what | 7 |
|
| 7 | just could [not/n't] [vb infin] what | 5 |
|
| 8 | just could [not/n't] [vb infin] what | 5 |
|
| 9 | [adv] could [not/n't] see what | 5 |
|
