| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it [vb -s] [be] [adj] [to-vb] | 13 |
|
| 2 | [subord] it [vb -s] be [adj] [to-vb] | 13 |
|
| 3 | [subord] it has [be] [adj] [to-vb] | 12 |
|
| 4 | [subord] it [vb -s] been [adj] [to-vb] | 12 |
|
| 5 | [subord] it [vb -s] [been] [adj] [to-vb] | 12 |
|
| 6 | [subord] it [vb -s] [be] possible [to-vb] | 5 |
|
