| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [noun] over a [adj] period | 114 |
|
| 2 | [adj] [noun] [prep] a long period | 56 |
|
| 3 | [adj] [noun] over a long [noun sg] | 52 |
|
| 4 | [adj] [noun] over a long [noun] | 52 |
|
| 5 | [adj] [noun] over a long period | 44 |
|
| 6 | [adj] [noun] over [art] long period | 44 |
|
| 7 | [adj] [noun] over [art] long period | 44 |
|
| 8 | [adj] [noun] over a long period | 44 |
|
