| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] a [adj] [noun] | 8725 |
|
| 2 | [verb] [prep] a [adj] period | 425 |
|
| 3 | [vb past] [prep] [art] [adj] period | 82 |
|
| 4 | [vb past] [prep] [art] [adj] period | 82 |
|
| 5 | [vb past] [prep] a [adj] period | 33 |
|
