| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] [prep] a [noun] | 6870 |
|
| 2 | [coord] [prep] [art] period | 85 |
|
| 3 | [coord] [prep] [art] period | 85 |
|
| 4 | [conj] [prep] a period | 76 |
|
| 5 | [coord] [prep] a period | 47 |
|
| 6 | [coord] [prep] a period | 47 |
|
