| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a long period [prep] | 26 |
|
| 2 | have [verb] a period [prep] | 25 |
|
| 3 | have [verb] a long period | 5 |
|
| 4 | have a long period [prep] | 5 |
|
