| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [vb pp] [prep] a long | 124 |
|
| 2 | [vb pp] [prep] a long period | 67 |
|
| 3 | have [vb pp] [prep] a period | 20 |
|
| 4 | have [vb pp] a long period | 5 |
|
