| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [not/n't] difficult [to-vb] the | 30 |
|
| 2 | be [not/n't] difficult [to-vb] the | 30 |
|
| 3 | [is] [not/n't] difficult [to-vb] the | 21 |
|
| 4 | is [not/n't] difficult [to-vb] the | 19 |
|
| 5 | [was/were] [not/n't] difficult [to-vb] the | 9 |
|
| 6 | was [not/n't] difficult [to-vb] the | 9 |
|
| 7 | [not/n't] difficult [to-vb] [adv] the | 9 |
|
| 8 | [not/n't] difficult [to-vb] [Wh adv] the | 7 |
|
| 9 | [not/n't] difficult [to-vb] [conj] the | 6 |
|
| 10 | [not/n't] difficult [to-vb] the [noun] | 25 |
|
| 11 | [not/n't] difficult [to-vb] the [noun sg] | 17 |
|
| 12 | [not/n't] difficult [to-vb] the [noun pl] | 6 |
|
| 13 | [not/n't] difficult [to-vb] the [adj] | 5 |
|
| 14 | [not/n't] difficult [to-vb] the [adj] | 5 |
|
