| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be difficult [prep] [pers pn] [verb] | 68 |
|
| 2 | it [be] difficult [prep] [pers pn] [to-vb] | 68 |
|
| 3 | it [be] difficult [prep] [pers pn] [verb] | 68 |
|
| 4 | it [be] difficult for [pers pn] [verb] | 68 |
|
| 5 | it [is] difficult [prep] [pers pn] [verb] | 51 |
|
| 6 | it is difficult [prep] [pers pn] [verb] | 39 |
|
| 7 | it was difficult [prep] [pers pn] [verb] | 17 |
|
| 8 | it [was/were] difficult [prep] [pers pn] [verb] | 17 |
|
| 9 | it [be] difficult [prep] us [verb] | 15 |
|
| 10 | it [be] difficult [prep] them [verb] | 15 |
|
| 11 | it [be] difficult [prep] me [verb] | 13 |
|
| 12 | it 's difficult [prep] [pers pn] [verb] | 12 |
|
| 13 | it [be] difficult [prep] him [verb] | 10 |
|
| 14 | it [be] difficult [prep] you [verb] | 7 |
|
| 15 | it [be] difficult [prep] her [verb] | 7 |
|
