| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] difficult to see | 246 |
|
| 2 | be difficult to see | 246 |
|
| 3 | [is] difficult to see | 205 |
|
| 4 | is difficult to see | 187 |
|
| 5 | [adv] difficult to see | 118 |
|
| 6 | [adv] difficult to see | 68 |
|
| 7 | [not/n't] difficult to see | 50 |
|
| 8 | not difficult to see | 50 |
|
| 9 | not difficult to see | 47 |
|
| 10 | [was/were] difficult to see | 34 |
|
| 11 | was difficult to see | 32 |
|
| 12 | very difficult to see | 28 |
|
| 13 | very difficult to see | 28 |
|
| 14 | [pron] difficult to see | 26 |
|
| 15 | [pers pn] difficult to see | 26 |
|
| 16 | it difficult to see | 24 |
|
| 17 | it difficult to see | 24 |
|
| 18 | 's difficult to see | 18 |
|
| 19 | more difficult to see | 10 |
|
| 20 | more difficult to see | 10 |
|
| 21 | [verb] difficult to see | 6 |
|
| 22 | difficult [adv] to see | 12 |
|
| 23 | difficult [not/n't] to see | 9 |
|
| 24 | difficult not to see | 9 |
|
| 25 | difficult not to see | 9 |
|
| 26 | difficult to see [adv] | 212 |
|
| 27 | difficult to see [Wh adv] | 200 |
|
| 28 | difficult to see how | 152 |
|
| 29 | difficult to see how | 152 |
|
| 30 | difficult to see [pron] | 65 |
|
