| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] difficult [verb] [conj] [pron] | 27 |
|
| 2 | is [adv] [adj] [verb] [coord] [pron] | 18 |
|
| 3 | is [adv] [adj] [verb] [coord] [pron] | 15 |
|
| 4 | [be] [adv] difficult [verb] [coord] [pron] | 14 |
|
| 5 | be [adv] difficult [verb] [coord] [pron] | 14 |
|
| 6 | is [adv] difficult [verb] [coord] [pron] | 5 |
|
| 7 | is [adv] difficult [verb] [coord] [pron] | 5 |
|
| 8 | [is] [adv] difficult [verb] [coord] [pron] | 5 |
|
