| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] [prep] [adj] period | 150 |
|
| 2 | [be] [vb pp] [prep] long [noun] | 131 |
|
| 3 | [be] [verb] [prep] long period | 40 |
|
| 4 | [be] [vb pp] [prep] long period | 39 |
|
