| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [vb pp] [prep] a [noun] | 7833 |
|
| 2 | [noun] [verb] [prep] a period | 98 |
|
| 3 | [noun] [vb pp] [prep] [art] period | 80 |
|
| 4 | [noun] [vb pp] [prep] [art] period | 80 |
|
| 5 | [noun] [vb pp] [prep] a period | 25 |
|
| 6 | [noun] [vb pp] [prep] a period | 25 |
|
