| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have be referred to | 110 |
|
| 2 | it be referred to | 42 |
|
| 3 | it have be to | 16 |
|
| 4 | it have be referred | 7 |
|
| 5 | it have referred to | 5 |
|
