| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | during a [adj] period [prep] | 30 |
|
| 2 | during a [adj] period [prep] | 29 |
|
| 3 | during a [adj] period [prep] | 25 |
|
| 4 | during a [adj] period of | 15 |
|
| 5 | during a [adj] period of | 15 |
|
| 6 | during a [adj] period in | 10 |
|
| 7 | during a [adj] period in | 10 |
|
| 8 | during a long period [prep] | 5 |
|
| 9 | during an [adj] period [prep] | 5 |
|
