| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] period during [art] | 6 |
|
| 2 | [prep] a [adj] period during the | 6 |
|
| 3 | [prep] a [adj] period during the | 6 |
|
| 4 | [prep] a [adj] period during [art] | 6 |
|
| 5 | [prep] a [adj] period during [Wh det] | 5 |
|
| 6 | [prep] a [adj] period during which | 5 |
|
| 7 | [prep] a [adj] period during [pron] | 5 |
|
| 8 | [prep] a [adj] period during which | 5 |
|
