| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [adj] [prep] us [verb] | 122 |
|
| 2 | it be [adj] [prep] us [verb] | 115 |
|
| 3 | it be difficult [prep] [pron] [verb] | 73 |
|
| 4 | it be difficult [prep] [pers pn] [verb] | 68 |
|
| 5 | it be difficult [prep] us [verb] | 15 |
|
| 6 | [pron] be difficult [prep] us [verb] | 15 |
|
| 7 | it be difficult [prep] we [verb] | 15 |
|
| 8 | [pers pn] be difficult [prep] us [verb] | 15 |
|
| 9 | it be difficult [prep] us [verb] | 15 |
|
| 10 | it [be] difficult [prep] us [verb] | 15 |
|
