| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] refer [prep] | 45 |
|
| 2 | it be refer [prep] | 45 |
|
| 3 | it [be] refer to | 44 |
|
| 4 | it [be] refer to | 44 |
|
| 5 | it [be] referred [prep] | 43 |
|
| 6 | it [is] refer [prep] | 19 |
|
| 7 | it is refer [prep] | 17 |
|
| 8 | it [was/were] refer [prep] | 14 |
|
| 9 | it was refer [prep] | 14 |
|
| 10 | it [am/are] refer [prep] | 10 |
|
| 11 | it be refer [prep] | 9 |
|
