| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it [is] difficult [verb] [det] | 23 |
|
| 2 | [coord] it [is] difficult [verb] [det] | 16 |
|
| 3 | and it [is] difficult [verb] [det] | 10 |
|
| 4 | and it [is] difficult [verb] [det] | 10 |
|
| 5 | [adv] it [is] difficult [verb] [det] | 8 |
|
| 6 | [adv] it [is] difficult [verb] [det] | 8 |
|
| 7 | [noun] it [is] difficult [verb] [det] | 8 |
|
| 8 | [noun sg] it [is] difficult [verb] [det] | 7 |
|
| 9 | but it [is] difficult [verb] [det] | 6 |
|
| 10 | but it [is] difficult [verb] [det] | 6 |
|
| 11 | [subord] it [is] difficult [verb] [det] | 5 |
|
| 12 | it [is] [adv] difficult [verb] [det] | 61 |
|
| 13 | it [is] [adv] difficult [verb] [det] | 55 |
|
| 14 | it [is] very difficult [verb] [det] | 22 |
|
| 15 | it [is] very difficult [verb] [det] | 22 |
|
| 16 | it [is] extremely difficult [verb] [det] | 11 |
|
| 17 | it [is] extremely difficult [verb] [det] | 11 |
|
| 18 | it [is] not difficult [verb] [det] | 6 |
|
| 19 | it [is] [not/n't] difficult [verb] [det] | 6 |
|
| 20 | it [is] not difficult [verb] [det] | 6 |
|
| 21 | it [is] often difficult [verb] [det] | 5 |
|
| 22 | it [is] often difficult [verb] [det] | 5 |
|
| 23 | it [is] difficult [adv] [verb] [det] | 6 |
|
| 24 | it [is] difficult [verb] [adv] [det] | 57 |
|
| 25 | it [is] difficult [verb] [Wh adv] [det] | 51 |
|
| 26 | it [is] difficult [verb] how [det] | 46 |
|
| 27 | it [is] difficult [verb] how [det] | 46 |
|
| 28 | it [is] difficult [verb] [prep] [det] | 33 |
|
| 29 | it [is] difficult [verb] [prep] [det] | 33 |
|
| 30 | it [is] difficult [verb] [conj] [det] | 27 |
|
