| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [prep] [adj] [noun] | 2680 |
|
| 2 | [pron] be [prep] [adj] background | 43 |
|
| 3 | it be [prep] [adj] background | 42 |
|
| 4 | it [be] [prep] [adj] background | 42 |
|
