| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] over a period | 29 |
|
| 2 | that [prep] a period | 20 |
|
| 3 | that over [art] period | 12 |
|
| 4 | that over a [noun sg] | 10 |
|
| 5 | that over a [noun] | 10 |
|
| 6 | that over a period | 6 |
|
