| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it was [adj] for [pers pn] [verb] | 158 |
|
| 2 | it was [adj] for [pers pn] [verb] | 144 |
|
| 3 | it be difficult for [pers pn] [verb] | 68 |
|
| 4 | it [be] difficult for [pers pn] [verb] | 68 |
|
| 5 | it was difficult for [pron] [verb] | 18 |
|
| 6 | it was difficult for [pers pn] [verb] | 17 |
|
| 7 | it [was/were] difficult for [pers pn] [verb] | 17 |
|
| 8 | it was difficult [prep] [pers pn] [verb] | 17 |
|
| 9 | [pron] was difficult for [pers pn] [verb] | 17 |
|
| 10 | it was difficult for [pers pn] [verb] | 17 |
|
| 11 | it was difficult [prep] [pers pn] [verb] | 17 |
|
