| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] difficult [to-vb] [adj] [noun pl] | 22 |
|
| 2 | is [adv] difficult [verb] [adj] [noun pl] | 16 |
|
| 3 | is [adv] difficult to find [adj] [noun pl] | 7 |
|
| 4 | is [adv] difficult find [adj] [noun pl] | 7 |
|
| 5 | is not difficult [verb] [adj] [noun pl] | 6 |
|
| 6 | is not difficult [verb] [adj] [noun pl] | 6 |
|
| 7 | is very difficult [verb] [adj] [noun pl] | 6 |
|
| 8 | is very difficult [verb] [adj] [noun pl] | 6 |
|
| 9 | is [not/n't] difficult [verb] [adj] [noun pl] | 6 |
|
