| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [noun] over a [adj] period | 78 |
|
| 2 | [adj] [noun sg] over a [adj] period | 52 |
|
| 3 | [adj] [noun] over a long period | 37 |
|
| 4 | [adj] [noun pl] over a [adj] period | 32 |
|
| 5 | [adj] [noun] over a long period | 29 |
|
| 6 | [adj] [noun] over a [adj -er] period | 8 |
|
| 7 | [adj] [noun] over a longer period | 8 |
|
| 8 | [adj] [noun] over a prolonged period | 6 |
|
| 9 | [adj] [noun] over a prolonged period | 6 |
|
