| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [noun pl] over a [adj] period | 32 |
|
| 2 | [adj] [noun pl] over a [adj] period | 32 |
|
| 3 | [adj] [noun pl] over a long period | 9 |
|
| 4 | [adj] [noun pl] over a long period | 7 |
|
