| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a period [prep] [noun] the | 11 |
|
| 2 | [prep] a period [prep] time [art] | 7 |
|
| 3 | [prep] a [noun] [prep] time the | 7 |
|
| 4 | [prep] a period [prep] time [art] | 7 |
|
| 5 | [prep] a period [prep] time the | 6 |
|
| 6 | [prep] a period [prep] time the | 6 |
|
| 7 | [prep] a period [prep] time the | 6 |
|
| 8 | [prep] a period [prep] time the | 6 |
|
| 9 | [prep] [art] period [prep] time the | 6 |
|
| 10 | [prep] [art] period [prep] time the | 6 |
|
