| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [adj] [prep] us [verb] | 44 |
|
| 2 | [modal v] be [adj] [prep] us [verb] | 38 |
|
| 3 | [modal v] be possible [prep] us [verb] | 5 |
|
| 4 | [modal v] be possible [prep] us [verb] | 5 |
|
| 5 | [modal v] be difficult [prep] us [verb] | 5 |
|
| 6 | [modal v] be difficult [prep] us [verb] | 5 |
|
