| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] [art] long period | 70 |
|
| 2 | [vb pp] [prep] a long period | 67 |
|
| 3 | [vb pp] [prep] a long period | 67 |
|
| 4 | [vb pp] [prep] [art] long period | 54 |
|
| 5 | [vb pp] over [art] long period | 44 |
|
| 6 | [vb pp] for [art] long period | 15 |
|
| 7 | [vb pp] [prep] [art] longer period | 14 |
|
| 8 | developed [prep] [art] long period | 5 |
|
