| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [adv] [prep] [v-ing] | 509 |
|
| 2 | it be [prep] [v-ing] that | 333 |
|
| 3 | be [adv] [prep] [v-ing] that | 66 |
|
| 4 | it be [adv] [v-ing] that | 41 |
|
