| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [prep] long period [prep] | 32 |
|
| 2 | [noun sg] [prep] long period [prep] | 32 |
|
| 3 | [noun sg] over [adj] period [prep] | 17 |
|
| 4 | [noun] over long period [prep] | 15 |
|
| 5 | [noun sg] over long [noun] [prep] | 9 |
|
| 6 | [noun sg] over long period [prep] | 7 |
|
| 7 | [noun sg] over long period [prep] | 7 |
|
