| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over a [adj] period | 545 |
|
| 2 | over a [adj] period | 488 |
|
| 3 | [prep] a five-year period | 35 |
|
| 4 | [prep] a five-year period | 35 |
|
| 5 | over [art] five-year period | 30 |
|
| 6 | over a five-year period | 25 |
|
| 7 | over a five-year period | 25 |
|
| 8 | over a five-year [noun] | 25 |
|
