| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] long period | 413 |
|
| 2 | [prep] a long period | 391 |
|
| 3 | [prep] a long period | 391 |
|
| 4 | [prep] [art] long period | 317 |
|
| 5 | over [art] long period | 235 |
|
| 6 | for [art] long period | 106 |
|
| 7 | [prep] [art] longer period | 89 |
|
| 8 | after [art] long period | 24 |
|
| 9 | [prep] the long period | 22 |
|
| 10 | [prep] the long period | 22 |
|
| 11 | of [art] long period | 15 |
|
| 12 | during [art] long period | 12 |
|
| 13 | [prep] [art] longest period | 7 |
|
| 14 | from [art] long period | 5 |
|
| 15 | to [art] long period | 5 |
|
