| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] could [adv] [verb] | 1573 |
|
| 2 | could not [adv] [verb] | 1461 |
|
| 3 | [noun pl] could not [verb] | 820 |
|
| 4 | [noun pl] not [adv] [verb] | 496 |
|
| 5 | [noun pl] could not [adv] | 87 |
|
