| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] period [prep] | 1182 |
|
| 2 | to a [adj] [prep] | 112 |
|
| 3 | to a period [prep] | 48 |
|
| 4 | to a [adj] period | 27 |
|
| 5 | to [adj] period [prep] | 14 |
|
