| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] be [vb pp] to [prep] | 6 |
|
| 2 | [adv] [verb] be refer to [prep] | 5 |
|
| 3 | [adv] [verb] be referred to [prep] | 5 |
|
