| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [art] period | 127 |
|
| 2 | [adv] a period | 69 |
|
| 3 | [adv] a period | 69 |
|
| 4 | [adv] the period | 58 |
|
| 5 | [adv] the period | 58 |
|
| 6 | long [art] period | 18 |
|
| 7 | also [art] period | 18 |
|
| 8 | short [art] period | 10 |
|
