| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] for a long [noun] | 199 |
|
| 2 | [vb pp] for a long [noun sg] | 199 |
|
| 3 | [vb pp] for a [adj] period | 84 |
|
| 4 | [vb pp] [prep] a long period | 67 |
|
| 5 | [verb] for a long period | 29 |
|
| 6 | [vb pp] for [art] long period | 15 |
|
| 7 | [vb pp] for [art] long period | 15 |
|
| 8 | [vb pp] for a long period | 14 |
|
| 9 | [vb pp] for a long period | 14 |
|
