| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [adv] difficult [to-vb] [conj] | 18 |
|
| 2 | was [adv] difficult [verb] [subord] | 8 |
|
| 3 | was [adv] difficult [verb] and | 7 |
|
| 4 | was [adv] difficult [verb] and | 7 |
|
| 5 | was [adv] difficult [verb] [coord] | 7 |
|
| 6 | was very difficult [verb] [conj] | 5 |
|
