| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [verb] [pron] | 5476 |
|
| 2 | not [verb] [pron] [vb past] | 1944 |
|
| 3 | could [verb] [pron] [vb past] | 252 |
|
| 4 | could not [pron] [vb past] | 8 |
|
| 5 | could not [verb] [vb past] | 5 |
|
