| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [conj] [prep] a period | 18 |
|
| 2 | [noun sg] [conj] over a [noun] | 17 |
|
| 3 | [noun sg] [conj] over a [noun sg] | 15 |
|
| 4 | [noun] [conj] over a period | 8 |
|
| 5 | [noun sg] [conj] over a period | 7 |
|
| 6 | [noun sg] [conj] over a period | 7 |
|
| 7 | [noun sg] [conj] over [art] period | 7 |
|
| 8 | [noun sg] [conj] over [art] period | 7 |
|
