| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over [adj] period of time | 44 |
|
| 2 | over [adj] period [prep] time | 44 |
|
| 3 | over [adj] period [prep] time | 39 |
|
| 4 | over [adj] periods [prep] time | 38 |
|
| 5 | over long period [prep] time | 19 |
|
| 6 | over long period [prep] time | 19 |
|
| 7 | over [adj] period [prep] time | 6 |
|
| 8 | over [det] period [prep] time | 5 |
|
