| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] over a long period of | 40 |
|
| 2 | [noun pl] over a [adj] period of | 20 |
|
| 3 | [noun pl] over a [adj] period of | 19 |
|
| 4 | [noun pl] [prep] a long period of | 10 |
|
| 5 | [noun pl] [prep] a long period of | 10 |
|
| 6 | [noun pl] over a long period of | 8 |
|
| 7 | [noun pl] over a long [noun] of | 7 |
|
| 8 | [noun pl] over a long period of | 7 |
|
| 9 | [noun pl] over a long period [prep] | 7 |
|
| 10 | [noun pl] over a long period of | 7 |
|
| 11 | [noun pl] over [art] long period of | 7 |
|
| 12 | [noun pl] over a long [noun sg] of | 7 |
|
