| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [verb] [prep] a long [noun] | 62 |
|
| 2 | [vb base] [verb] [prep] a long [noun sg] | 61 |
|
| 3 | [verb] [verb] [prep] a long period | 18 |
|
| 4 | [vb base] [verb] [prep] a [adj] period | 10 |
|
| 5 | [vb base] [verb] [prep] [art] long period | 5 |
|
| 6 | [vb base] [verb] [prep] [art] long period | 5 |
|
| 7 | [vb base] [verb] [prep] a long period | 5 |
|
| 8 | [vb base] [verb] [prep] a long period | 5 |
|
| 9 | [vb base] [verb] [prep] a long period | 5 |
|
