| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] difficult [to-vb] [is] | 20 |
|
| 2 | [adv] difficult [to-vb] [is] | 20 |
|
| 3 | [be] difficult [to-vb] [is] | 13 |
|
| 4 | more difficult [to-vb] [is] | 13 |
|
| 5 | be difficult [to-vb] [is] | 13 |
|
| 6 | more difficult [to-vb] [is] | 13 |
|
| 7 | [is] difficult [to-vb] [is] | 12 |
|
| 8 | is difficult [to-vb] [is] | 9 |
|
| 9 | difficult [noun] [to-vb] [is] | 5 |
|
| 10 | difficult [noun sg] [to-vb] [is] | 5 |
|
| 11 | difficult [to-vb] [pron] [is] | 26 |
|
| 12 | difficult [to-vb] [Wh det] [is] | 18 |
|
| 13 | difficult [to-vb] what [is] | 14 |
|
| 14 | difficult [to-vb] what [is] | 14 |
|
| 15 | difficult [to-vb] [conj] [is] | 8 |
|
| 16 | difficult [to-vb] [coord] [is] | 7 |
|
| 17 | difficult [to-vb] and [is] | 6 |
|
| 18 | difficult [to-vb] who [is] | 6 |
|
| 19 | difficult [to-vb] [Wh pn] [is] | 6 |
|
| 20 | difficult [to-vb] who [is] | 6 |
|
| 21 | difficult [to-vb] and [is] | 6 |
|
| 22 | difficult [to-vb] [is] [art] | 15 |
|
| 23 | difficult [to-vb] [is] [art] | 15 |
|
| 24 | difficult [to-vb] [is] the | 14 |
|
| 25 | difficult [to-vb] [is] the | 14 |
|
| 26 | difficult [to-vb] [is] [adv] | 13 |
|
| 27 | difficult [to-vb] [is] [not/n't] | 11 |
|
| 28 | difficult [to-vb] [is] not | 10 |
|
| 29 | difficult [to-vb] [is] n't | 9 |
|
| 30 | difficult [to-vb] [is] [conj] | 7 |
|
