| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over [art] [adj] period [prep] time | 117 |
|
| 2 | over [art] [adj] period of time | 117 |
|
| 3 | over a [adj] period [prep] time | 113 |
|
| 4 | over [art] long period [prep] time | 71 |
|
| 5 | over [art] short period [prep] time | 7 |
|
| 6 | over [art] prolonged period [prep] time | 7 |
|
| 7 | over [art] considerable period [prep] time | 7 |
|
| 8 | over [art] given period [prep] time | 5 |
|
