| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [coord] [pron] is difficult [prep] | 8 |
|
| 2 | [coord] [pron] is [adv] difficult [prep] | 10 |
|
| 3 | [coord] [pron] is [adv] difficult [prep] | 10 |
|
| 4 | [coord] [pron] is difficult [verb] [prep] | 19 |
|
| 5 | [coord] [pron] is difficult [to-vb] [prep] | 19 |
|
| 6 | [coord] [pron] is difficult [prep] [be] | 8 |
|
| 7 | [coord] [pron] is difficult [prep] be | 8 |
|
| 8 | [coord] [pron] is difficult [prep] [be] | 8 |
|
| 9 | [coord] [pron] is difficult [prep] be | 8 |
|
| 10 | [coord] [pron] is difficult [prep] [art] | 5 |
|
| 11 | [coord] [pron] is difficult [prep] [pron] | 5 |
|
| 12 | [coord] [pron] is difficult [prep] [art] | 5 |
|
