| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] an [noun] | 25065 |
|
| 2 | not [noun] [prep] [noun] | 359 |
|
| 3 | not [prep] an [noun] | 174 |
|
| 4 | not [noun] [prep] an | 22 |
|
