| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [subord] it is [to-vb] | 35 |
|
| 2 | [adj] [subord] it [is] [to-vb] | 35 |
|
| 3 | [adj] if it [is] [to-vb] | 13 |
|
| 4 | [adj] as it [is] [to-vb] | 12 |
|
| 5 | [adj] though it [is] [to-vb] | 9 |
|
| 6 | difficult [subord] it [is] [to-vb] | 5 |
|
