| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] [adj] period [v-ing] [prep] | 17 |
|
| 2 | [art] [adj] period [v-ing] [prep] | 17 |
|
| 3 | [art] [adj] period [v-ing] [prep] | 14 |
|
| 4 | a [adj] period [v-ing] [prep] | 14 |
|
| 5 | a [adj] period [v-ing] [prep] | 14 |
|
