| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could not [verb] [adv] | 1606 |
|
| 2 | [pron] could not [verb] [indef pn] | 357 |
|
| 3 | [pron] could [verb] [adv] [indef pn] | 35 |
|
| 4 | could not [verb] [adv] [indef pn] | 18 |
|
