| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] it is [adj] [verb] [that] | 178 |
|
| 2 | [coord] it is [adj] [verb] [that] | 174 |
|
| 3 | [conj] it is difficult [verb] [that] | 18 |
|
| 4 | [coord] it is difficult [verb] [conj] | 16 |
|
| 5 | [coord] it [be] difficult [verb] [that] | 11 |
|
| 6 | [coord] it be difficult [verb] [that] | 11 |
|
| 7 | [coord] it [is] difficult [verb] [that] | 9 |
|
| 8 | [coord] [pron] is difficult [verb] [that] | 8 |
|
| 9 | [coord] it is difficult [verb] [that] | 8 |
|
