| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it is [adv] difficult [verb] | 150 |
|
| 2 | [coord] it is [adv] difficult [verb] | 62 |
|
| 3 | [that] it is [adv] difficult [verb] | 49 |
|
| 4 | that it is [adv] difficult [verb] | 49 |
|
| 5 | that it is [adv] difficult [verb] | 49 |
|
| 6 | [subord] it is [adv] difficult [verb] | 39 |
|
| 7 | [noun] it is [adv] difficult [verb] | 37 |
|
| 8 | and it is [adv] difficult [verb] | 35 |
|
| 9 | and it is [adv] difficult [verb] | 35 |
|
| 10 | [adv] it is [adv] difficult [verb] | 29 |
|
| 11 | [noun sg] it is [adv] difficult [verb] | 27 |
|
| 12 | but it is [adv] difficult [verb] | 27 |
|
| 13 | but it is [adv] difficult [verb] | 27 |
|
| 14 | [adv] it is [adv] difficult [verb] | 22 |
|
| 15 | [pron] it is [adv] difficult [verb] | 13 |
|
| 16 | because it is [adv] difficult [verb] | 13 |
|
| 17 | because it is [adv] difficult [verb] | 13 |
|
| 18 | which it is [adv] difficult [verb] | 11 |
|
| 19 | [Wh det] it is [adv] difficult [verb] | 11 |
|
| 20 | which it is [adv] difficult [verb] | 11 |
|
| 21 | [noun pl] it is [adv] difficult [verb] | 10 |
|
| 22 | [verb] it is [adv] difficult [verb] | 8 |
|
| 23 | practice it is [adv] difficult [verb] | 7 |
|
| 24 | [Wh adv] it is [adv] difficult [verb] | 7 |
|
| 25 | practice it is [adv] difficult [verb] | 7 |
|
| 26 | [adj] it is [adv] difficult [verb] | 7 |
|
| 27 | [det] it is [adv] difficult [verb] | 6 |
|
| 28 | since it is [adv] difficult [verb] | 5 |
|
| 29 | since it is [adv] difficult [verb] | 5 |
|
| 30 | it is [adv] [adv] difficult [verb] | 120 |
|
