| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for a [adj] period [prep] | 320 |
|
| 2 | [verb] a [adj] period [prep] | 198 |
|
| 3 | [verb] for a [adj] period | 176 |
|
| 4 | [verb] for a period [prep] | 75 |
|
| 5 | [verb] for a [adj] [prep] | 46 |
|
| 6 | [verb] for [adj] period [prep] | 9 |
|
