| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] long period | 413 |
|
| 2 | [prep] a long period | 391 |
|
| 3 | [prep] [art] long period | 324 |
|
| 4 | over [art] long period | 235 |
|
| 5 | for [art] long period | 109 |
|
| 6 | [prep] [art] longer period | 90 |
|
| 7 | [prep] the long period | 35 |
|
| 8 | after [art] long period | 24 |
|
| 9 | of [art] long period | 19 |
|
| 10 | during [art] long period | 15 |
|
| 11 | [prep] [art] long periods | 13 |
|
| 12 | [prep] [art] longest period | 12 |
|
| 13 | to [art] long period | 6 |
|
| 14 | from [art] long period | 5 |
|
