| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [vb pp] [prep] [art] long period | 16 |
|
| 2 | [verb] [vb pp] [prep] [art] long period | 16 |
|
| 3 | [verb] [vb pp] [prep] a long period | 15 |
|
| 4 | [verb] [vb pp] [prep] a long period | 15 |
|
| 5 | [verb] [vb pp] [prep] [art] long period | 15 |
|
| 6 | [verb] [vb pp] over [art] long period | 12 |
|
| 7 | has [vb pp] [prep] [art] long period | 6 |
|
| 8 | [vb -s] [vb pp] [prep] [art] long period | 6 |
|
