| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [verb] [prep] | 1005 |
|
| 2 | not [verb] [indef pn] [prep] | 442 |
|
| 3 | could [verb] [indef pn] [prep] | 348 |
|
| 4 | could not [verb] [indef pn] | 77 |
|
