| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] period [prep] | 1182 |
|
| 2 | a [adj] [noun] during | 481 |
|
| 3 | [art] [adj] period during | 33 |
|
| 4 | [art] [adj] period during | 33 |
|
| 5 | a [adj] period during | 25 |
|
