| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] [art] long period [prep] | 47 |
|
| 2 | [verb] [prep] a long period [prep] | 42 |
|
| 3 | [verb] [prep] [art] long period [prep] | 40 |
|
| 4 | [verb] [prep] [art] long period of | 38 |
|
| 5 | [verb] [prep] [art] long period of | 38 |
|
| 6 | [vb pp] [prep] [art] long period [prep] | 35 |
|
| 7 | [verb] over [art] long period [prep] | 17 |
|
| 8 | [verb] for [art] long period [prep] | 14 |
|
| 9 | [verb] [prep] the long period [prep] | 5 |
|
| 10 | [vb base] [prep] [art] long period [prep] | 5 |
|
