| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not a [noun] [prep] | 3061 |
|
| 2 | [adv] a period [prep] | 117 |
|
| 3 | not [art] period [prep] | 9 |
|
| 4 | not [art] period [prep] | 9 |
|
| 5 | not a period [prep] | 7 |
|
