| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [noun] over a period [prep] | 109 |
|
| 2 | [det] [noun] over a [noun] [prep] | 33 |
|
| 3 | [det] [noun] [prep] a period [prep] | 30 |
|
| 4 | [det] [noun] [prep] a period [prep] | 30 |
|
| 5 | [det] [noun] over [art] period [prep] | 20 |
|
| 6 | [det] [noun] over [art] period [prep] | 20 |
|
| 7 | [det] [noun] over a period [prep] | 19 |
|
| 8 | [det] [noun] over a period [prep] | 19 |
|
| 9 | [det] [noun] over a period [prep] | 19 |
|
