| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pos pn] [noun] over a period of | 12 |
|
| 2 | [pron] [noun] over a period of | 12 |
|
| 3 | [pron] [noun pl] over a period of | 8 |
|
| 4 | their [noun] over a period of | 5 |
|
| 5 | their [noun] over a period of | 5 |
|
