| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [am/are] [adv] difficult [to-vb] | 13 |
|
| 2 | [conj] [am/are] [adv] difficult [verb] | 13 |
|
| 3 | [conj] are [adv] difficult [verb] | 13 |
|
| 4 | [coord] [am/are] [adv] difficult [verb] | 8 |
|
| 5 | and [am/are] [adv] difficult [verb] | 6 |
|
| 6 | and [am/are] [adv] difficult [verb] | 6 |
|
| 7 | that [am/are] [adv] difficult [verb] | 5 |
|
| 8 | [that] [am/are] [adv] difficult [verb] | 5 |
|
| 9 | that [am/are] [adv] difficult [verb] | 5 |
|
