| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [prep] an [noun] | 18814 |
|
| 2 | not [noun sg] [prep] [noun] | 202 |
|
| 3 | not [prep] an [noun] | 174 |
|
| 4 | not [noun sg] [prep] an | 17 |
|
