| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be difficult [verb] this [noun] | 17 |
|
| 2 | it be difficult [verb] this [noun] | 17 |
|
| 3 | [pron] be difficult [verb] this [noun] | 17 |
|
| 4 | [pers pn] be difficult [verb] this [noun] | 17 |
|
| 5 | be [adv] difficult [verb] this [noun] | 10 |
|
| 6 | be [adv] difficult [verb] this [noun] | 8 |
|
| 7 | be difficult [verb] [prep] this [noun] | 14 |
|
| 8 | be difficult [verb] [prep] this [noun] | 14 |
|
| 9 | be difficult [verb] this [noun] [prep] | 10 |
|
| 10 | be difficult [verb] this [noun] [prep] | 10 |
|
| 11 | be difficult [verb] this [noun] [conj] | 6 |
|
