| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over [art] [adj] period [prep] [noun sg] | 20 |
|
| 2 | over [art] [adj] period [prep] time | 19 |
|
| 3 | over [art] [adj] period of [noun sg] | 18 |
|
| 4 | over a [adj] period [prep] [noun sg] | 17 |
|
| 5 | over [art] long period [prep] [noun sg] | 9 |
|
| 6 | over [art] long period [prep] [noun sg] | 9 |
|
