| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a [adj] period [prep] | 159 |
|
| 2 | [verb] [vb pp] a period [prep] | 24 |
|
| 3 | [verb] [vb pp] a [adj] [prep] | 20 |
|
| 4 | [vb pp] a [adj] period [prep] | 19 |
|
| 5 | [verb] [vb pp] a [adj] period | 13 |
|
