| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [verb] [prep] [art] [adj] | 166 |
|
| 2 | [modal v] not [verb] [prep] [art] same | 40 |
|
| 3 | could [adv] [verb] [prep] [art] same | 12 |
|
| 4 | could not [verb] [prep] [art] [det] | 8 |
|
| 5 | could not [verb] [prep] [art] same | 6 |
|
