| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [pron] could [not/n't] | 960 |
|
| 2 | [pron] could [not/n't] see | 805 |
|
| 3 | and [pron] could see | 300 |
|
| 4 | and could [not/n't] see | 20 |
|
