| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [verb] and | 243 |
|
| 2 | it is [vb pp] and | 184 |
|
| 3 | it is [v-ing] and | 42 |
|
| 4 | it is [to-vb] and | 17 |
|
| 5 | it is rain and | 7 |
|
| 6 | it is raining and | 7 |
|
| 7 | it is make and | 5 |
|
