| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [noun sg] over a [adj] | 225 |
|
| 2 | [noun sg] over a [adj] period | 156 |
|
| 3 | [adj] [noun sg] over a period | 59 |
|
| 4 | [adj] over a [adj] period | 25 |
|
