| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [art] period | 61 |
|
| 2 | [vb pp] a period | 50 |
|
| 3 | [vb pp] a period | 50 |
|
| 4 | entered [art] period | 9 |
|
| 5 | [vb pp] the period | 8 |
|
| 6 | had [art] period | 8 |
|
| 7 | [vb pp] the period | 8 |
|
