| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] over a [adj] | 812 |
|
| 2 | over a [adj] period | 545 |
|
| 3 | [noun sg] over a period | 180 |
|
| 4 | [noun sg] over [adj] period | 45 |
|
| 5 | [noun sg] a [adj] period | 10 |
|
