| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] clear [conj] | 290 |
|
| 2 | it is [adv] [v-ing] [conj] | 27 |
|
| 3 | it is [v-ing] clear [conj] | 9 |
|
| 4 | it is [adv] [v-ing] clear | 8 |
|
| 5 | is [adv] [v-ing] clear [conj] | 6 |
|
