| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] over a [adj] period | 289 |
|
| 2 | [pron] [noun] over a [adj] | 49 |
|
| 3 | [pron] [noun] over a period | 13 |
|
| 4 | [pron] over a [adj] period | 6 |
|
