| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adj] [prep] [pron] | 754 |
|
| 2 | is [adj] [prep] [pron] [to-vb] | 329 |
|
| 3 | it [adj] [prep] [pron] [to-vb] | 300 |
|
| 4 | it is [prep] [pron] [to-vb] | 46 |
|
