| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [vb infin] [verb] | 2605 |
|
| 2 | not [vb infin] [conj] [verb] | 1702 |
|
| 3 | could not [vb infin] [conj] | 914 |
|
| 4 | could [vb infin] [conj] [verb] | 717 |
|
| 5 | could not [conj] [verb] | 34 |
|
