| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] [art] [adj] period of | 130 |
|
| 2 | [vb pp] [prep] [art] long [noun] of | 105 |
|
| 3 | [vb pp] [prep] [art] long [noun sg] of | 90 |
|
| 4 | [verb] [prep] [art] long period of | 38 |
|
| 5 | [vb pp] [prep] [art] long period [prep] | 35 |
|
| 6 | [vb pp] [prep] [art] long period of | 30 |
|
| 7 | [vb pp] [prep] [art] long period of | 30 |
|
