| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [to-vb] [prep] | 5691 |
|
| 2 | [to-vb] us [prep] | 945 |
|
| 3 | be [to-vb] us | 115 |
|
| 4 | be us [prep] | 9 |
|
