| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [verb] [prep] a [adj] | 876 |
|
| 2 | could [verb] [prep] a [adj] | 373 |
|
| 3 | could not [verb] [prep] [adj] | 157 |
|
| 4 | could not [verb] a [adj] | 126 |
|
| 5 | could not [verb] [prep] a | 80 |
|
