| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be [verb] to | 4874 |
|
| 2 | [prep] be refer [prep] | 112 |
|
| 3 | [prep] be refer [prep] | 112 |
|
| 4 | [prep] be refer to | 105 |
|
| 5 | [prep] [be] refer to | 105 |
|
