| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over [det] a long period | 5 |
|
| 2 | over [adj] a long period | 5 |
|
| 3 | over such a long period | 5 |
|
| 4 | over such a long period | 5 |
|
| 5 | [noun] over a long period | 95 |
|
| 6 | [noun sg] over a long period | 66 |
|
| 7 | [verb] over a long period | 35 |
|
| 8 | [vb pp] over a long period | 34 |
|
| 9 | [noun pl] over a long period | 24 |
|
| 10 | [adv] over a long period | 18 |
|
| 11 | [adv] over a long period | 14 |
|
| 12 | [conj] over a long period | 9 |
|
| 13 | [coord] over a long period | 7 |
|
| 14 | over a [adv] long period | 10 |
|
| 15 | over a [adv] long period | 10 |
|
| 16 | over a long period [prep] | 85 |
|
| 17 | over a long period [prep] | 85 |
|
| 18 | over a long period of | 77 |
|
| 19 | over a long period of | 77 |
|
| 20 | over a long period [coord] | 10 |
|
| 21 | over a long period [conj] | 10 |
|
| 22 | over a long period and | 10 |
|
| 23 | over a long period and | 10 |
|
