| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it was difficult [verb] [pron] | 56 |
|
| 2 | it was [verb] [pron] [prep] | 41 |
|
| 3 | it was difficult [verb] [prep] | 33 |
|
| 4 | it difficult [verb] [pron] [prep] | 14 |
|
| 5 | was difficult [verb] [pron] [prep] | 5 |
|
