| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] over twenty years | 28 |
|
| 2 | [noun sg] [prep] over twenty years | 15 |
|
| 3 | [verb] [prep] over twenty years | 9 |
|
| 4 | [noun prp] [prep] over twenty years | 8 |
|
| 5 | [vb pp] [prep] over twenty years | 6 |
|
| 6 | [noun pl] [prep] over twenty years | 5 |
|
| 7 | [prep] over twenty years [conj] | 6 |
|
| 8 | [prep] over twenty years [prep] | 5 |
|
| 9 | [prep] over twenty years [prep] | 5 |
|
