| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be a [adj] [noun] [prep] | 4140 |
|
| 2 | [pron] be a [adj] period [prep] | 28 |
|
| 3 | it be [art] [adj] period [prep] | 6 |
|
| 4 | it [be] a [adj] period [prep] | 5 |
|
