| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] a | 1839 |
|
| 2 | it is [to-vb] a | 104 |
|
| 3 | is [adv] [to-vb] a | 100 |
|
| 4 | it is [adv] [to-vb] | 96 |
|
| 5 | it [adv] [to-vb] a | 18 |
|
