| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [conj] | 1581 |
|
| 2 | is [to-vb] [conj] | 1318 |
|
| 3 | it is [to-vb] | 1163 |
|
| 4 | it [to-vb] [conj] | 246 |
|
