| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [adv] [prep] [art] period | 30 |
|
| 2 | [vb past] [adv] [prep] [art] period | 22 |
|
| 3 | [vb past] [adv] [prep] the period | 20 |
|
| 4 | [vb past] [adv] [prep] a period | 10 |
|
| 5 | [vb past] [adv] during [art] period | 8 |
|
| 6 | [vb past] [adv prt] [prep] [art] period | 8 |
|
| 7 | [vb past] [adv] during [art] period | 8 |
|
| 8 | [vb past] [adv] over [art] period | 7 |
|
| 9 | [vb past] [adv] over [art] period | 7 |
|
