| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] a | 1839 |
|
| 2 | it is [adv] [conj] | 826 |
|
| 3 | it is [conj] a | 52 |
|
| 4 | is [adv] [conj] a | 52 |
|
| 5 | it [adv] [conj] a | 17 |
|
