| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] [noun sg] over a period | 16 |
|
| 2 | [verb] [prep] [noun sg] over a period | 11 |
|
| 3 | [noun sg] [prep] [noun sg] over a period | 11 |
|
| 4 | [noun pl] [prep] [noun sg] over a period | 5 |
|
| 5 | [prep] [art] [noun sg] over a period | 34 |
|
| 6 | [prep] [art] [noun sg] over a period | 34 |
|
| 7 | [prep] the [noun sg] over a period | 27 |
|
| 8 | [prep] the [noun sg] over a period | 27 |
|
| 9 | [prep] [adj] [noun sg] over a period | 15 |
|
| 10 | [prep] [adj] [noun sg] over a period | 11 |
|
| 11 | [prep] a [noun sg] over a period | 7 |
|
| 12 | [prep] [noun sg] [noun] over a period | 6 |
|
| 13 | [prep] [noun sg] over a [adj] period | 31 |
|
| 14 | [prep] [noun sg] over a [adj] period | 29 |
|
| 15 | [prep] [noun sg] over a long period | 20 |
|
| 16 | [prep] [noun sg] over a long period | 18 |
|
| 17 | [prep] [noun sg] over a period [prep] | 25 |
|
| 18 | [prep] [noun sg] over a period [prep] | 25 |
|
| 19 | [prep] [noun sg] over a period of | 24 |
|
| 20 | [prep] [noun sg] over a period of | 24 |
|
