| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [verb] [prep] a | 3039 |
|
| 2 | [verb] [prep] a certain | 589 |
|
| 3 | not [verb] [prep] certain | 45 |
|
| 4 | not [verb] a certain | 15 |
|
| 5 | not [prep] a certain | 6 |
|
