| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not an [noun sg] [prep] | 414 |
|
| 2 | not [art] [noun sg] at | 141 |
|
| 3 | not [art] [noun sg] at | 141 |
|
| 4 | not a [noun sg] at | 103 |
|
| 5 | [adv] an [noun sg] at | 78 |
|
| 6 | not an [noun] at | 16 |
|
