| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [verb] [prep] a [noun] | 1024 |
|
| 2 | [pron] [be] [verb] [prep] a period | 16 |
|
| 3 | it [be] [verb] [prep] [art] period | 8 |
|
| 4 | it [be] [verb] [prep] [art] period | 8 |
|
| 5 | it [be] [verb] [prep] a period | 5 |
|
