| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have be [verb] to | 426 |
|
| 2 | have be [vb pp] to | 376 |
|
| 3 | [verb] be referred to | 120 |
|
| 4 | have be referred to | 110 |
|
| 5 | have be refer to | 12 |
|
| 6 | have be referred [prep] | 7 |
|
| 7 | have be referred [prep] | 7 |
|
| 8 | [vb infin] be referred to | 7 |
|
| 9 | have be referred to | 6 |
|
| 10 | have [be] referred to | 6 |
|
