| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [vb pp] [prep] a [adj] period | 26 |
|
| 2 | have [vb pp] [prep] a [adj] period | 26 |
|
| 3 | [verb] [vb pp] [prep] a long period | 15 |
|
| 4 | [verb] [vb pp] [prep] a long period | 15 |
|
| 5 | [verb] [vb pp] over a [adj] period | 14 |
|
| 6 | had [vb pp] [prep] a [adj] period | 8 |
|
| 7 | [vb past] [vb pp] [prep] a [adj] period | 8 |
|
| 8 | has [vb pp] [prep] a [adj] period | 7 |
|
| 9 | [vb -s] [vb pp] [prep] a [adj] period | 7 |
|
| 10 | [vb base] [vb pp] [prep] a [adj] period | 6 |
|
| 11 | have [vb pp] [prep] a [adj] period | 6 |
|
