| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a long period | 137 |
|
| 2 | [noun sg] [prep] [art] long period | 104 |
|
| 3 | [noun] over [art] long period | 96 |
|
| 4 | [noun pl] [prep] [art] long period | 30 |
|
| 5 | [noun] for [art] long period | 24 |
|
| 6 | [noun] of [art] long period | 10 |
|
| 7 | [noun] after [art] long period | 6 |
|
| 8 | [noun] [prep] the long period | 5 |
|
