| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] over a [adj] period | 181 |
|
| 2 | [art] [noun sg] over a [adj] | 153 |
|
| 3 | [art] [noun sg] over a period | 49 |
|
| 4 | [art] [noun sg] over [adj] period | 9 |
|
