| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] a [adj] period | 266 |
|
| 2 | [prep] a [adj] period in | 72 |
|
| 3 | [vb pp] [prep] [adj] period in | 11 |
|
| 4 | [vb pp] [prep] a period in | 8 |
|
| 5 | [vb pp] [prep] a [adj] in | 7 |
|
