| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] over a period | 29 |
|
| 2 | [coord] over [art] period | 22 |
|
| 3 | and over [art] period | 16 |
|
| 4 | and over [art] period | 16 |
|
| 5 | that over [art] period | 12 |
|
| 6 | [that] over [art] period | 12 |
|
| 7 | that over [art] period | 12 |
|
| 8 | [conj] over the period | 11 |
|
| 9 | [subord] over [art] period | 6 |
|
