| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a period [subord] | 21 |
|
| 2 | for a period [conj] | 21 |
|
| 3 | [prep] a period [coord] | 20 |
|
| 4 | [prep] a period and | 12 |
|
| 5 | [prep] a period and | 12 |
|
| 6 | [prep] a period [that] | 8 |
|
| 7 | [prep] a period that | 8 |
|
| 8 | [prep] a period that | 8 |
|
| 9 | [prep] a period as | 7 |
|
| 10 | [prep] a period as | 7 |
|
| 11 | over a period [conj] | 6 |
|
| 12 | of a period [conj] | 6 |
|
| 13 | [prep] a period before | 6 |
|
| 14 | [prep] a period before | 6 |
|
