| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it is difficult [verb] | 377 |
|
| 2 | [coord] it is difficult [verb] | 161 |
|
| 3 | [subord] it is difficult [verb] | 120 |
|
| 4 | [noun] it is difficult [verb] | 109 |
|
| 5 | that it is difficult [verb] | 96 |
|
| 6 | that it is difficult [verb] | 96 |
|
| 7 | [that] it is difficult [verb] | 96 |
|
| 8 | and it is difficult [verb] | 85 |
|
| 9 | and it is difficult [verb] | 85 |
|
| 10 | but it is difficult [verb] | 76 |
|
| 11 | but it is difficult [verb] | 76 |
|
| 12 | [noun sg] it is difficult [verb] | 72 |
|
| 13 | [adv] it is difficult [verb] | 65 |
|
| 14 | [adv] it is difficult [verb] | 53 |
|
| 15 | [noun pl] it is difficult [verb] | 34 |
|
| 16 | although it is difficult [verb] | 30 |
|
| 17 | although it is difficult [verb] | 30 |
|
| 18 | [pron] it is difficult [verb] | 22 |
|
| 19 | [Wh det] it is difficult [verb] | 21 |
|
| 20 | which it is difficult [verb] | 21 |
|
| 21 | which it is difficult [verb] | 21 |
|
| 22 | [adj] it is difficult [verb] | 21 |
|
| 23 | as it is difficult [verb] | 18 |
|
| 24 | as it is difficult [verb] | 18 |
|
| 25 | [verb] it is difficult [verb] | 17 |
|
| 26 | because it is difficult [verb] | 17 |
|
| 27 | because it is difficult [verb] | 17 |
|
| 28 | since it is difficult [verb] | 15 |
|
| 29 | since it is difficult [verb] | 15 |
|
| 30 | if it is difficult [verb] | 10 |
|
