| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [verb] [prep] a period | 21 |
|
| 2 | have [verb] [prep] a period | 21 |
|
| 3 | have [vb pp] [prep] a period | 20 |
|
| 4 | has [verb] [prep] a period | 11 |
|
| 5 | have [verb] over a period | 7 |
|
| 6 | have [verb] over a period | 7 |
|
| 7 | have [verb] for a period | 6 |
|
| 8 | have [verb] for a period | 6 |
|
| 9 | have [verb] through a period | 5 |
|
| 10 | have [verb] through a period | 5 |
|
