| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for an [noun] | 5192 |
|
| 2 | [not/n't] an [noun] | 1303 |
|
| 3 | [not/n't] for [noun] | 562 |
|
| 4 | [not/n't] for an | 17 |
|
