| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [verb] | 21336 |
|
| 2 | not [verb] [noun sg] | 10867 |
|
| 3 | could [verb] [noun sg] | 2313 |
|
| 4 | could not [noun sg] | 46 |
|
