| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adv] [adj] period [prep] | 121 |
|
| 2 | have a [adj] period [prep] | 21 |
|
| 3 | have a [adv] [adj] [prep] | 7 |
|
| 4 | have a [adv] [adj] period | 6 |
|
