| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [prep] a [adj] | 11506 |
|
| 2 | [prep] a [adj] period | 2001 |
|
| 3 | [pron] [prep] [adj] period | 39 |
|
| 4 | [pron] [prep] a period | 34 |
|
| 5 | [pron] a [adj] period | 9 |
|
