| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [vb pp] [prep] a [adj] | 2156 |
|
| 2 | [vb pp] [prep] a [adj] period | 239 |
|
| 3 | have [vb pp] [prep] a period | 20 |
|
| 4 | have [vb pp] a [adj] period | 13 |
|
