| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] not [verb] [art] [adj] | 2795 |
|
| 2 | [vb mod] not [verb] [art] [adj] | 2795 |
|
| 3 | could [adv] [verb] [art] [adj] | 1130 |
|
| 4 | could not [verb] [art] [adj] | 605 |
|
