| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [verb] clear that | 20 |
|
| 2 | it is [verb] clear that | 20 |
|
| 3 | it is made clear that | 11 |
|
| 4 | it is [vb pp] clear that | 11 |
|
| 5 | it is make clear that | 11 |
|
| 6 | it is becoming clear that | 9 |
|
| 7 | it is become clear that | 9 |
|
| 8 | it is [v-ing] clear that | 9 |
|
