| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which it is [adv] [adj] [verb] | 42 |
|
| 2 | [pron] it is [adv] difficult [verb] | 13 |
|
| 3 | which [pron] is [adv] difficult [verb] | 12 |
|
| 4 | which it [is] [adv] difficult [verb] | 11 |
|
| 5 | which [pers pn] is [adv] difficult [verb] | 11 |
|
| 6 | which it is [adv] difficult [verb] | 11 |
|
| 7 | which it [be] [adv] difficult [verb] | 11 |
|
| 8 | which it is [adv] difficult [verb] | 11 |
|
| 9 | which it be [adv] difficult [verb] | 11 |
|
