| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun] [noun] | 70564 |
|
| 2 | not a [noun] [noun] | 914 |
|
| 3 | [prep] not a [noun] | 45 |
|
| 4 | [prep] not [noun] [noun] | 8 |
|
