| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] [adv] [adj] period [prep] | 192 |
|
| 2 | been [art] [adv] [adj] [prep] | 66 |
|
| 3 | been [art] [adj] period [prep] | 13 |
|
| 4 | been [art] [adv] [adj] period | 9 |
|
