| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it [modal v] [vb infin] [adv] | 281 |
|
| 2 | it [modal v] [vb infin] [adv] [det] | 179 |
|
| 3 | [subord] it [modal v] [vb infin] [det] | 109 |
|
