| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [prep] be | 672 |
|
| 2 | is [prep] be [adj] | 424 |
|
| 3 | it is [prep] [adj] | 423 |
|
| 4 | it [prep] be [adj] | 273 |
|
