| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] and [verb] | 151 |
|
| 2 | [prep] a [adj] period [verb] | 62 |
|
| 3 | [prep] a [adj] period and | 50 |
|
| 4 | a [adj] period and [verb] | 12 |
|
