| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pos pn] [noun] over a [adj] period | 10 |
|
| 2 | [pron] [noun sg] over a [adj] period | 8 |
|
| 3 | their [noun] over a [adj] period | 5 |
|
| 4 | their [noun] over a [adj] period | 5 |
|
