| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] over a long period | 95 |
|
| 2 | [noun pl] over a long period | 24 |
|
| 3 | [noun] [noun pl] over a period | 20 |
|
| 4 | [noun] [noun pl] over a long | 5 |
|
