| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over a [adj] period | 462 |
|
| 2 | over [art] long period | 183 |
|
| 3 | over the [adj] period | 115 |
|
| 4 | over [art] five-year period | 30 |
|
| 5 | over [art] three-year period | 28 |
|
| 6 | over an [adj] period | 26 |
|
| 7 | over [art] whole period | 25 |
|
| 8 | over [art] two-year period | 18 |
|
| 9 | over [art] post-war period | 17 |
|
| 10 | over [art] short period | 15 |
|
| 11 | over [art] prolonged period | 15 |
|
| 12 | over [art] extended period | 12 |
|
| 13 | over [art] given period | 12 |
|
| 14 | over [art] four-year period | 9 |
|
| 15 | over [art] 10-year period | 9 |
|
| 16 | over [art] seven-year period | 8 |
|
| 17 | over [art] 24-hour period | 7 |
|
| 18 | over [art] six-month period | 7 |
|
| 19 | over [art] considerable period | 7 |
|
| 20 | over [art] lengthy period | 7 |
|
| 21 | over [art] ten-year period | 7 |
|
| 22 | over [art] six-year period | 6 |
|
| 23 | over [art] sustained period | 5 |
|
| 24 | over [art] entire period | 5 |
|
| 25 | over [art] festive period | 5 |
|
