| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] be refer to | 136 |
|
| 2 | it be refer to | 44 |
|
| 3 | it [verb] be to | 23 |
|
| 4 | it [verb] refer to | 10 |
|
| 5 | it [verb] be refer | 7 |
|
