| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over a [noun sg] [noun] | 250 |
|
| 2 | [prep] a [noun sg] period | 107 |
|
| 3 | [prep] a [noun sg] period | 107 |
|
| 4 | over [art] [noun sg] period | 80 |
|
| 5 | over [art] [noun sg] period | 80 |
|
| 6 | over a [noun] period | 13 |
|
| 7 | over a [noun sg] period | 12 |
|
| 8 | over a [noun sg] period | 12 |
|
