| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over [art] period [prep] [noun sg] | 206 |
|
| 2 | over [art] period of [noun sg] | 199 |
|
| 3 | over [art] period [prep] time | 188 |
|
| 4 | over a period [prep] [noun sg] | 187 |
|
| 5 | over a period [prep] [noun sg] | 186 |
|
| 6 | over the period [prep] [noun sg] | 19 |
|
| 7 | over the period [prep] [noun sg] | 19 |
|
