| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] a long [noun] | 440 |
|
| 2 | [vb pp] [prep] a long [noun sg] | 430 |
|
| 3 | [vb pp] [prep] a [adj] period | 266 |
|
| 4 | [verb] [prep] a long period | 91 |
|
| 5 | [vb pp] [prep] [art] long period | 70 |
|
| 6 | [vb pp] [prep] [art] long period | 70 |
|
| 7 | [vb pp] [prep] a long period | 67 |
|
| 8 | [vb pp] [prep] a long period | 67 |
|
| 9 | [vb pp] [prep] a long period | 67 |
|
