| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [to-vb] [adj] [prep] | 655 |
|
| 2 | [to-vb] [adj] period [prep] | 31 |
|
| 3 | have [adj] period [prep] | 15 |
|
| 4 | have [to-vb] [adj] period | 7 |
|
